Stuffed marrow is a comforting oven-baked dish made by filling tender marrow halves with seasoned minced beef, tomato and rice, then finishing them with a little melted cheese. This British-style home-cooking favourite is adaptable to different family kitchens, and the pre-baked marrow and savoury filling make a hearty meal that is easy to portion and serve.
Ingredients
- 2 medium marrows, about 3 lb (1.4 kg) total
- 1 tbsp (15 ml) olive oil, divided
- 1 medium yellow onion, finely chopped, about 1 cup (150 g)
- 2 garlic cloves, minced, about 2 tsp (10 g)
- 1 lb (450 g) lean ground beef (minced beef)
- 1 cup (240 ml) passata or smooth tomato sauce
- 1 cup (180 g) cooked long-grain rice, cooled
- 1 tsp (2 g) dried oregano
- ½ tsp (1 g) smoked or sweet paprika
- ¾ tsp (4 g) fine salt, plus more to taste
- ¼ tsp (0.5 g) freshly ground black pepper
- ½ cup (50 g) finely grated cheddar or Parmesan, divided
- 2 tbsp (8 g) chopped fresh parsley, plus extra to serve
- ½ cup (120 ml) water, for the baking dish
Instructions
- Heat the oven and prepare the marrow. Set a rack in the centre of the oven and preheat it to 400°F (200°C). Rinse and dry the marrows. Trim off the stem and tip, then cut each marrow in half lengthwise. With a spoon, scoop out the soft, seedy centre, leaving a shell about ½ inch (1.25 cm) thick. Discard the seedy pulp, or reserve a small amount to chop into the filling if it is firm rather than watery. Brush the cut sides and hollowed interiors with about 1 tsp (5 ml) of the oil.
- Soften the shells. Place the marrow halves cut-side down in a roasting pan or baking dish and add the water around them. Cover the dish snugly with foil and bake for 15 minutes. The marrow should start to soften but still hold its shape; it will cook further after it is filled. Carefully remove the foil, turn the halves cut-side up and pour off any excess water. Leave them in the dish while you make the filling. The hot pan will continue to cook them slightly, so avoid leaving them in the oven during the next step.
- Start the beef filling. While the marrow bakes, warm the remaining oil in a large frying pan over medium heat. Add the chopped onion and cook for 4–5 minutes, stirring now and then, until it has softened. Stir in the garlic and cook for about 30 seconds, just until fragrant. Add the ground beef, breaking it into small pieces with a wooden spoon. Cook for 6–8 minutes, stirring and turning the meat, until no pink patches remain. If the beef releases a lot of liquid, continue cooking until most of it has evaporated rather than adding extra sauce.
- Season and bind the filling. Stir in the passata, oregano, paprika, salt and pepper. Let the mixture bubble gently for 2 minutes, then take the pan off the heat. Fold in the cooked rice, half of the grated cheese and the parsley. Taste a small spoonful and adjust the seasoning if needed. The filling should be moist enough to hold together when spooned, not soupy; if it looks very wet, return the pan to the heat for another minute or two to reduce it.
- Fill and bake. Divide the beef mixture evenly among the marrow halves, mounding it gently without compressing it too firmly. Sprinkle the remaining cheese over the tops. Bake uncovered for 25–28 minutes, until the marrow is tender when pierced with a knife and the cheese is melted and lightly golden. Check the centre of the beef filling with a food thermometer; USDA FSIS guidance sets the safe minimum internal temperature for ground beef at 160°F (71°C). If the marrow is tender before the top browns, it is ready—there is no need to keep baking it just for a darker colour.
- Rest and serve. Take the dish out of the oven and let the stuffed marrow stand for 5 minutes so the filling settles and the portions are easier to lift. Scatter over extra parsley and serve hot, with any juices from the dish spooned over the top.
Tips
- Choose a firm marrow. Look for one that feels heavy for its size and has unbroken skin. A very large, over-mature marrow can have a tough outer layer and a wide, watery seed cavity. If yours is especially thick, remove a little more of the inner flesh, but keep enough shell to support the filling.
- Use cooked, cooled rice. This recipe assumes the rice is already cooked; uncooked rice will not reliably soften in the short oven bake and can absorb too much moisture from the filling. Leftover plain rice works well if it has been refrigerated safely. If you do not have rice, use ¾ cup (about 85 g) breadcrumbs instead; the texture will be softer and more like a meatloaf filling.
- Keep the filling savoury, not watery. Marrow releases moisture as it cooks, so drain the pre-baking liquid and reduce a loose beef mixture before stuffing. Avoid piling the seedy pulp into the filling, since it can make the centre wet. A little moisture is welcome, but the filling should stay on the spoon rather than run off it.
- Substitute thoughtfully. Passata is smooth, strained tomato and is available in many supermarkets. If you cannot find it, use the same amount of canned crushed tomatoes and simmer the filling until thick; it will have a slightly chunkier texture. Ground turkey can replace beef, though it is milder and leaner, so watch it while browning and check it reaches 165°F (74°C) if using poultry.
Serving Suggestions
Serve one stuffed marrow half per person as a main course, with a simple green salad dressed with lemon or vinegar to balance the rich beef and cheese. Steamed green beans, peas or broccoli are easy sides, while roasted carrots or a tray of seasonal vegetables make the meal more substantial. If you want something to catch the tomato juices, add crusty bread, mashed potatoes or a small portion of buttered new potatoes.
For a lighter plate, serve the marrow with dressed leaves and keep the side dish simple. For a more filling dinner, add extra rice or potatoes, but remember the marrow already contains rice in its filling. A spoonful of plain yogurt or a little extra tomato sauce can be offered at the table, though neither is necessary. Bring the baking dish to the table if serving family-style, and use a wide spatula to transfer each half without splitting the softened shell.
Variations
Add vegetables: Finely diced red pepper, grated carrot or chopped mushrooms can be cooked with the onion. Use about ½ cup (75 g) of one or two additions so the filling remains easy to mound. Mushrooms release liquid, so cook them until that liquid evaporates before adding the beef.
Change the herbs and cheese: Replace the oregano with 1 tsp (2 g) dried thyme, or use 1 tbsp (3 g) chopped fresh basil stirred in after cooking. Cheddar gives a familiar, sharp finish; Parmesan makes the topping saltier and more savoury. If using a strongly salted cheese, reduce the added salt slightly.
Make it without rice: Replace the cooked rice with ¾ cup (85 g) fresh breadcrumbs, or omit it and use an extra 4 oz (115 g) ground beef. Breadcrumbs make a softer, more compact filling, while extra beef makes it denser and meatier. Check that the mixture still fits comfortably in the marrow halves before baking.
Adjust the seasoning: For a gentle warming note, add a pinch of chilli flakes with the paprika. For a more Mediterranean-style version, add ¼ cup (35 g) chopped olives and use parsley with a little lemon zest. Keep additions modest so they complement rather than overwhelm the mild flavour of the marrow.
Storage and Reheating
Let leftovers cool briefly, then refrigerate them within 2 hours of cooking in a covered, shallow container. Cooked stuffed marrow keeps for 3–4 days in the refrigerator. For easier storage, cut each half into serving-size pieces, but keep the filling and shell together so the pieces do not dry out. If the marrow was left at room temperature for more than 2 hours, discard it rather than saving it.
To reheat, place portions in an oven-safe dish, add a tablespoon or two of water, cover with foil and warm at 350°F (175°C) until hot throughout. Check the centre with a thermometer; leftovers should reach 165°F (74°C). A microwave also works: cover the portion loosely, heat in short intervals, and turn or rearrange it if needed for even heating. The texture will be softer after reheating, but the cover and a little added water help limit drying.
To freeze, wrap cooled portions well or place them in a freezer-safe container and freeze for up to 2 months for best quality. Thaw overnight in the refrigerator, then reheat to 165°F (74°C). The marrow may become softer after freezing, so frozen portions are best reheated until fully hot and served directly from the dish rather than transferred repeatedly.
Frequently Asked Questions
What is marrow, and can I use zucchini instead?
Marrow is a mature summer squash, closely related to zucchini (courgette), and is usually larger with a thicker shell and more developed seeds. Zucchini can be used if marrow is unavailable: choose large, firm zucchini, halve them lengthwise and scoop them out. Their smaller size means you may need more halves, and they often cook faster, so begin checking for tenderness after about 18 minutes in the final bake.
Do I need to peel the marrow?
No. The skin helps the halves keep their shape while they bake and is generally left on. Wash and dry the marrow before cutting it. If the skin is unusually tough, you can peel a few narrow strips lengthwise for easier eating, but peeling the entire marrow may leave the shell less sturdy.
Can I prepare stuffed marrow ahead of time?
Yes. Cook the filling and soften the marrow shells, then cool both promptly and refrigerate them separately in covered containers for up to a day. Fill the shells shortly before baking, add the cheese and bake until the centre is hot and the ground beef mixture reaches 160°F (71°C). Allow extra oven time if the ingredients are cold, and rely on a thermometer rather than colour alone.
Why is my stuffed marrow watery?
Marrow naturally gives off water as it cooks, and an over-mature marrow or a filling that has not reduced can add even more. Pre-baking the shells cut-side down, draining the liquid and simmering the tomato-beef mixture until it is thick helps. Also avoid using watery seed pulp in the filling. A little juice in the dish is normal; it should not make the filling collapse.
How do I know when the marrow is cooked?
The shell should be tender enough for a knife to pass through without much resistance, but it should still hold its shape when lifted. The beef filling must reach 160°F (71°C) in its centre according to USDA FSIS guidance for ground beef. If the filling reaches that temperature before the marrow is tender, cover the dish and continue baking, checking the shell again after a few minutes.
Can I make this recipe without cheese?
Yes. Leave off the cheese for a dairy-free version, or replace it with a dairy-free grated alternative if suitable. The cheese mainly adds a browned, savoury topping rather than holding the filling together, so the rest of the recipe does not need to change. If baking without a topping, check the marrow as it cooks because the surface may look less browned even when the dish is ready.
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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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