Name: Stuffed Marrow Recipe: Hearty Beef and Tomato Filling
Prep time: 25 min
Cook time: 1 h 5 min
Total time: 1 h 30 min
Yield: 4
Ingredients: 1 large marrow, about 2½ lb (1.1 kg), washed; 1 tbsp (15 ml) olive oil; 1 medium yellow onion, about 5 oz (150 g), finely chopped; 2 garlic cloves, about 0.2 oz (6 g), minced; 1 lb (450 g) ground beef, preferably 85–90% lean; 1 cup (60 g) plain breadcrumbs; 1 large egg, about 1.8 oz (50 g), lightly beaten; ½ cup (50 g) finely grated Parmesan, plus 2 tbsp (10 g) for the topping; 1 tsp (1 g) dried oregano; ½ tsp (1 g) paprika; ½ tsp (1 g) fine salt, plus more to taste; ¼ tsp (0.5 g) freshly ground black pepper; 1 can (14½ oz/411 g) crushed tomatoes, or 1⅔ cups (400 ml) passata; ¼ cup (15 g) chopped fresh parsley; ½ cup (55 g) grated mozzarella or mild cheddar

Stuffed Marrow Recipe: Hearty Beef and Tomato Filling

Stuffed marrow is a British home-style dish made by filling a large marrow squash with seasoned beef, breadcrumbs, herbs and tomato, then baking it until tender. The mild squash softens around the savory filling, and a short first bake helps it cook through without leaving the finished dish watery; family versions vary in their meat, herbs and toppings.

Ingredients

1 large marrow, about 2½ lb (1.1 kg), washed
1 tbsp (15 ml) olive oil
1 medium yellow onion, about 5 oz (150 g), finely chopped
2 garlic cloves, about 0.2 oz (6 g), minced
1 lb (450 g) ground beef, preferably 85–90% lean
1 cup (60 g) plain breadcrumbs
1 large egg, about 1.8 oz (50 g), lightly beaten
½ cup (50 g) finely grated Parmesan, plus 2 tbsp (10 g) for the topping
1 tsp (1 g) dried oregano
½ tsp (1 g) paprika
½ tsp (1 g) fine salt, plus more to taste
¼ tsp (0.5 g) freshly ground black pepper
1 can (14½ oz/411 g) crushed tomatoes, or 1⅔ cups (400 ml) passata
¼ cup (15 g) chopped fresh parsley
½ cup (55 g) grated mozzarella or mild cheddar

Instructions

Heat the oven and prepare the marrow. Set a rack in the middle of the oven and heat it to 375°F (190°C). Trim the ends from the marrow and slice it lengthwise in half. Scoop out the soft, seedy center with a spoon, leaving a sturdy wall about ½ inch (1.25 cm) thick. Discard the large seeds and watery core. If the marrow is too long for your baking dish, cut each half crosswise into manageable sections, keeping the pieces large enough to hold the filling.
Give the marrow a first bake. Arrange the halves cut-side down in a large baking dish or roasting pan. Bake for 15 minutes, just until the flesh begins to soften. Carefully turn the pieces cut-side up and pour away any liquid collected in the dish. This first bake gives a large, mature marrow a head start; do not bake it until fully tender at this stage, or it may slump when filled.
Cook the beef filling. While the marrow bakes, warm the olive oil in a large skillet over medium heat. Add the onion and cook for 4–5 minutes, stirring occasionally, until softened. Stir in the garlic for 30 seconds, then add the ground beef, oregano, paprika, salt and pepper. Break the meat into small pieces and cook for about 7–9 minutes, stirring, until no pink remains. Check the thickest portion with a food thermometer: USDA FSIS lists 160°F (71°C) as the safe minimum internal temperature for ground beef. Drain excess fat if there is a lot, but leave a little for flavor.
Finish the filling. Take the skillet off the heat. Mix in the breadcrumbs, beaten egg, ½ cup (50 g) Parmesan and chopped parsley. Stir in about ½ cup (120 ml) of the crushed tomatoes, keeping the rest for the baking dish. The mixture should hold together when spooned but should not be wet or soupy. Taste a small portion and adjust the seasoning if needed; do not taste the raw mixture because it contains egg.
Fill the marrow. Spoon the remaining crushed tomatoes into the baking dish around the marrow. Divide the beef mixture between the halves, pressing it gently into each hollow without packing it hard. Mound any extra filling along the center. Sprinkle the mozzarella or cheddar and the remaining Parmesan over the top. If the dish is crowded, arrange marrow sections in a single layer so they cook evenly.
Bake until tender and browned. Cover the dish loosely with foil and bake for 25 minutes. Remove the foil and bake for another 10 minutes, until the cheese is lightly browned and the marrow is tender when pierced near the edge with a knife. Check the center of the filling with a thermometer; it should remain at least 160°F (71°C). If the marrow is especially thick and still firm, cover it again and bake in 5-minute increments until tender.
Rest and serve. Let the dish stand for 5 minutes so the filling settles and the sauce stops bubbling. Lift each half or section onto a plate with a wide spatula, spoon tomato sauce from the pan over it, and serve hot.

Tips

Choose a sound marrow. Pick one that feels firm and heavy for its size, with unbroken skin and no soft spots. Very large marrows can have a thick, watery center, so scoop out the seed cavity generously while leaving enough flesh to support the stuffing. A marrow varies in size, so the filling may not all fit inside; bake any extra in a small ovenproof dish beside it.
Keep the filling moist, not loose. Breadcrumbs absorb juices from the beef and tomato, while the egg helps the mixture hold together once baked. If it looks crumbly before stuffing, mix in 1–2 tbsp (15–30 ml) extra tomato. If it seems wet, add breadcrumbs a tablespoon at a time. Avoid pouring extra liquid into the marrow cavity, since the squash releases moisture as it cooks.
Use a suitable substitute if needed. Large marrow is sometimes sold as vegetable marrow or simply as a very mature courgette. If you cannot find one, use two or three large zucchini, also called courgettes, cut lengthwise and hollowed. They are usually smaller and more tender, so check them after 20–25 minutes of final baking rather than assuming they need the full time.
Make the prep easier. Chop the onion and parsley and measure the dry ingredients before starting the oven. A sturdy spoon or melon baller removes the seedy center neatly. If the marrow halves wobble, trim a very thin sliver from their rounded backs so they sit level; take care not to cut through the flesh.

Serving Suggestions

Serve stuffed marrow as the main course while the cheese is hot and the tomato sauce is spoonable. Its beef-and-breadcrumb filling makes it substantial, but a simple green salad dressed with vinegar or lemon gives the plate a fresh contrast. Steamed green beans, peas, or lightly cooked cabbage also work well, especially if you want a traditional, straightforward supper.

For a more filling meal, add boiled or mashed potatoes, crusty bread, or buttered rice to catch the sauce. Keep extra sauce in a small jug at the table, because some marrow pieces will release more liquid than others. If serving guests, cut each half into thick sections after resting; that makes portions easier to lift and keeps the filling in place. A little extra parsley over the top adds color without competing with the savory filling.

Variations

For a lighter or meat-free filling, replace the beef with 1½ cups (250 g) cooked brown or green lentils and ½ cup (75 g) finely chopped mushrooms. Cook the onion and mushrooms until their moisture has evaporated, then stir in the lentils, breadcrumbs, egg, herbs and cheese as directed. The result is earthier and softer than the beef version. For a fully vegetarian option, check that the Parmesan is made with vegetarian-friendly rennet, or replace it with a hard vegetarian cheese.

You can change the seasoning without changing the method. Swap the oregano for 1 tsp (2 g) dried thyme, or use ½ tsp (1 g) ground cumin and a pinch of chili flakes for a warmer, more aromatic filling. For a sharper topping, use mature cheddar in place of mozzarella. If you prefer a more tomato-forward dish, stir 1 tbsp (15 g) tomato paste into the beef after browning and use the full can of tomatoes around the marrow; the sauce will taste richer and slightly less mild.

Ground lamb can replace the beef in the same quantity for a fuller, distinctly lamb flavor. Since ground lamb is also ground meat, cook it to 160°F (71°C) and check with a food thermometer. You can also add ½ cup (75 g) chopped roasted red pepper to the cooked filling for sweetness, or replace some of the breadcrumbs with ½ cup (75 g) cooked rice. Rice makes the stuffing softer and less bready, so keep the tomato addition modest to prevent it becoming loose.

Storage and Reheating

Refrigerate leftovers within 2 hours of cooking. Store the marrow and sauce in a covered, airtight container for 3–4 days. If the halves are too large for your container, cut them into portions once cool enough to handle, then pack them with some sauce so the filling does not dry out. Do not leave cooked stuffed marrow at room temperature for more than 2 hours.

For best texture, reheat individual portions in a covered ovenproof dish at 350°F (175°C) until hot throughout, usually 20–25 minutes from refrigerated, depending on portion size. A microwave also works: cover loosely and heat in short bursts, turning the portion if needed. USDA FSIS recommends reheating leftovers to 165°F (74°C); check the center of the filling with a food thermometer. The marrow will soften more after reheating, but keeping it covered helps limit drying. Freeze portions in a freezer-safe container for up to 2 months for best quality, then thaw overnight in the refrigerator and reheat as above. The texture may be softer after freezing.

Frequently Asked Questions

Do I need to peel a marrow before stuffing it?
No. The skin helps the halves hold their shape while baking, and it softens enough to eat on most young or medium-sized marrows. A very mature marrow can have tougher skin; if yours seems unusually thick, peel a few narrow strips lengthwise before cutting it, rather than removing all the skin and risking a fragile shell.

How can I stop stuffed marrow from becoming watery?
Scoop out the wet, seedy center, give the halves the short first bake, and pour off liquid before filling. Use only the measured tomato inside the filling and put the remaining tomatoes around the marrow. A mature marrow may still release some liquid, which is normal; serve the pieces with the sauce from the dish rather than trying to bake every trace of moisture away.

Can I prepare stuffed marrow ahead of time?
You can cook the filling and prepare the marrow up to a day ahead, then refrigerate them separately in covered containers. For the best texture, assemble just before baking, because salt and tomato draw moisture from the squash while it sits. If you do assemble it ahead, refrigerate promptly and bake it within 24 hours; allow a little extra oven time if it goes into the oven cold, and confirm the filling reaches 160°F (71°C).

Can I make this without breadcrumbs?
Yes. Use ½ cup (75 g) cooked rice, or finely crushed plain crackers, instead of the 1 cup (60 g) breadcrumbs. Rice gives the filling a softer texture, while crackers make it a little saltier and denser. If leaving out both breadcrumbs and rice, reduce the tomato mixed into the filling and expect a looser stuffing that may not slice as neatly.

How do I know when the marrow is cooked?
Push a small knife into the flesh near the side of a half; it should slide in with gentle resistance, not meet a hard, raw center. The edges should still hold their shape rather than collapse. Also check the middle of the meat filling with a food thermometer to confirm it is at least 160°F (71°C). If the filling is ready before a very large marrow is tender, cover the dish and continue baking in short increments.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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