How Long to Cook a One-Pound Meatloaf in the Oven at 350°F

A one-pound meatloaf is a compact loaf of seasoned ground beef mixed with breadcrumbs, milk, egg, and aromatics, then baked with a tangy glaze. At 350°F (177°C), plan on about 50 to 60 minutes in the oven; a thermometer, rather than the clock alone, tells you when the center is safely cooked.

Ingredients

1 pound (454 g) ground beef, preferably 85% lean
1/2 cup (55 g) plain dried breadcrumbs
1/4 cup (60 ml) whole or 2% milk
1 large egg (about 50 g without the shell)
1/2 cup (75 g) finely diced yellow onion
1 tablespoon (15 ml) Worcestershire sauce
1 small garlic clove, finely grated or minced (about 3 g)
3/4 teaspoon (about 4 g) fine salt, or 1 teaspoon (about 3 g) kosher salt
1/2 teaspoon (1 g) freshly ground black pepper
1/2 teaspoon (about 0.5 g) dried thyme
1/4 cup (60 g) ketchup, for the glaze
1 tablespoon (12 g) packed brown sugar, for the glaze
1 teaspoon (5 ml) yellow or Dijon mustard, for the glaze

Instructions

Heat the oven and prepare a pan. Set a rack in the middle of the oven and heat it to 350°F (177°C). Line a rimmed baking sheet with foil or parchment, or lightly oil it. A baking sheet lets heat reach the sides of the loaf and allows excess fat to drain away. You can also use a small loaf pan, but the meatloaf may sit in more of its juices and take a little longer to brown. Start heating the oven while you prepare the mixture so preheating does not add a separate wait.
Make a quick panade. Stir the breadcrumbs and milk together in a large bowl and leave them for about 3 minutes, until the crumbs look evenly damp. This simple paste helps bind the meat and keeps the finished slices tender. If the mixture looks dry, give it another minute to absorb the milk; do not add extra milk automatically, because a loose mixture can make the loaf soft and difficult to slice.
Mix the meatloaf gently. Add the egg, diced onion, Worcestershire sauce, garlic, salt, pepper, and thyme to the bowl. Crumble the ground beef over the top. Use clean hands or a fork to mix just until the ingredients are distributed, with no large pockets of egg or seasoning. Avoid squeezing or kneading the meat for a long time: overmixing packs it tightly and can make the cooked loaf dense. If you want to check the seasoning, cook a teaspoon of the mixture in a skillet until done and taste it; do not taste the raw mixture.
Shape an even loaf. Transfer the mixture to the prepared sheet and form a compact loaf about 8 inches (20 cm) long, 4 inches (10 cm) wide, and 2 inches (5 cm) high. Keep the ends and center a similar thickness so they cook at roughly the same pace. Press lightly to close cracks, but do not compress the loaf hard. If using a loaf pan, gently level the top and leave a little room around the meat for airflow if the pan allows.
Add the glaze and bake. Stir together the ketchup, brown sugar, and mustard, then spread about half over the top of the loaf. Bake for 25 minutes, brush on the remaining glaze, and continue baking for about 25 to 35 minutes more. For a one-pound loaf in the specified shape, the usual total oven time is 50 to 60 minutes; begin checking at 45 minutes because shape, pan, and oven differences matter. Insert an instant-read thermometer into the thickest part from the side or top. USDA FSIS lists 160°F (71°C) as the safe minimum internal temperature for ground meat, so bake until the center reaches at least that temperature. Do not rely on a browned top, clear juices, or a fixed time as proof of doneness.
Rest, then slice. Move the baking sheet to a heat-safe surface and let the meatloaf rest for 10 minutes before cutting. Resting gives the juices a chance to settle and makes neat slices easier; it is not a substitute for reaching the safe temperature in the oven. Cut into four thick portions with a sharp knife or use a thin spatula to lift each slice from the sheet. Spoon any glaze or juices left on the pan over the slices, if desired.

Tips

Use the right thermometer placement. A one-pound loaf is small enough that a few degrees make a noticeable difference. Put the probe in the center of the thickest section, avoiding the pan and any large air gaps. If the reading is below 160°F (71°C), return the loaf to the oven and check again after several minutes. A thermometer with a thin probe is useful, but any food thermometer that gives a reliable reading can work.
Keep the meat mixture cool and handle it lightly. Ground beef can become sticky as it warms, and extensive mixing makes the texture firm. If the oven is not ready when the loaf is shaped, refrigerate it briefly rather than leaving raw meat on the counter. Wash hands, utensils, and surfaces that touched raw beef with hot, soapy water before using them for cooked food.
Choose a substitute with the texture in mind. Plain panko can replace the dried breadcrumbs in the same volume, though its larger flakes may give a slightly looser, more delicate slice. For a gluten-free version, use certified gluten-free breadcrumbs. If you do not have Worcestershire sauce, use an equal amount of soy sauce; it brings a saltier, less tangy flavor, so taste the cooked loaf before adding extra salt next time.
Do not overfill a small pan. The loaf should be thick but not piled high. A taller, narrower loaf needs longer to cook through than the suggested 8-by-4-inch shape, while a flatter loaf cooks faster and may dry sooner. If using a loaf pan, carefully drain excess rendered liquid before glazing or slicing, keeping the pan stable and away from children.

Serving Suggestions

Serve the meatloaf hot, with the glaze still glossy and enough time for the slices to hold their shape. Mashed potatoes, roasted potatoes, buttered egg noodles, or steamed rice make a filling base for the savory juices. For vegetables, try green beans, roasted carrots, broccoli, peas, or a simple green salad dressed with a sharp vinaigrette. The sweet-tangy topping pairs especially well with sides that are plain or lightly seasoned.

For a casual meal, put a thick slice beside toasted bread and a crisp pickle, or tuck leftovers into a sandwich with extra ketchup or mustard. If you are serving several people, slice the loaf at the table or arrange the pieces on a warm platter. Keep any sauce that has touched raw meat separate from ready-to-eat sides; use only glaze that was handled cleanly or cooked with the loaf.

Variations

Use a beef-and-pork blend. Replace half of the ground beef with 8 ounces (227 g) ground pork, keeping the total meat at 1 pound (454 g). The blend has a softer texture and a richer flavor. Because it still contains ground meat, cook the center to 160°F (71°C), checking with a thermometer. Do not assume a different meat blend is done just because the outside is browned.

Add a little more vegetable flavor. Replace up to half the onion with 1/4 cup (about 35 g) finely diced green bell pepper or 1/4 cup (about 25 g) finely grated carrot. For the most even texture, chop the pepper small or briefly soften it in a pan and let it cool before mixing. Raw vegetables release moisture as they bake, so avoid adding a large amount or the loaf can become wet and harder to slice.

Change the glaze. For a less sweet finish, leave out the brown sugar and use ketchup with a little extra mustard. For a smoky note, add 1/2 teaspoon (2.5 ml) smoked paprika to the glaze. You can also brush on barbecue sauce instead of the ketchup mixture, using about 1/4 cup (60 ml); the result will be sweeter or smokier depending on the sauce. Apply it during the final part of baking so sugary sauces are less likely to darken too much.

Make a gentle herb variation. Swap the dried thyme for 1 teaspoon (about 1 g) dried Italian seasoning, or use 1 tablespoon (about 3 g) finely chopped fresh parsley. Fresh parsley gives a mild, green flavor rather than the deeper aroma of dried herbs. Keep the binder and meat quantities unchanged when adding herbs, and avoid adding large handfuls of wet ingredients that could loosen the mixture.

Storage and Reheating

Refrigerate cooked meatloaf within 2 hours of baking, or sooner if the room is very warm. Store slices or the remaining loaf in a shallow, airtight container; it keeps for 3 to 4 days in the refrigerator. Separating the slices with a little parchment makes it easier to take out only what you need. Do not leave the cooked loaf at room temperature for extended periods while serving; return leftovers to the refrigerator promptly.

To reheat a slice in the microwave, place it on a microwave-safe plate, cover it loosely, and heat in short intervals until steaming hot throughout. For several slices, arrange them in a baking dish with a spoonful of water or broth, cover with foil, and warm in a 325°F (163°C) oven. In either method, reheat leftovers to 165°F (74°C), checked with a food thermometer. Refrigerated meatloaf can also be frozen in airtight wrapping for about 2 to 3 months for best quality. Thaw it in the refrigerator before reheating, rather than on the counter.

Frequently Asked Questions

How long does a one-pound meatloaf take at 350°F?

For a loaf shaped about 8 inches long, 4 inches wide, and 2 inches high, expect roughly 50 to 60 minutes at 350°F (177°C). Begin checking at about 45 minutes, since a loaf pan, a taller shape, or an oven that runs cool can change the timing. The center must reach 160°F (71°C); use that temperature rather than the clock as the final doneness check.

Should I cover a one-pound meatloaf while it bakes?

Usually, no. Leaving it uncovered helps the glaze set and the outside brown. If the top is becoming too dark before the center reaches 160°F (71°C), loosely tent it with foil for the remaining baking time. Avoid wrapping it tightly from the start, which traps steam and can leave the surface pale and wet.

Is a loaf pan or baking sheet better?

Either works. A rimmed baking sheet encourages browning around the sides and lets rendered fat run away from the loaf, while a loaf pan supports the shape and makes it easy to lift out, but may hold more liquid. A shallow baking dish is another option. Whatever you choose, keep the loaf near the same thickness and check its center temperature, because the pan can affect how quickly heat reaches the middle.

Can I prepare the meatloaf ahead of time?

Yes. Shape it, cover it, and refrigerate it for up to 24 hours before baking. Keep it chilled rather than leaving it on the counter, and expect that a cold loaf may need a few extra minutes in the oven. Glaze it before baking or add the glaze during the first part of cooking, then use a thermometer to confirm the center reaches 160°F (71°C).

Why is my meatloaf falling apart?

Common causes include too little binder, a mixture that was too wet, slicing before the loaf rested, or cutting very thin slices while it is hot. The egg and breadcrumb-milk mixture in this recipe help hold the meat together, while a 10-minute rest makes it easier to portion. If the mixture seems unusually loose before baking, add breadcrumbs a tablespoon (about 7 g) at a time rather than adding a large amount all at once.

Can I bake a one-pound meatloaf at a higher temperature to save time?

You can bake meatloaf at a hotter temperature, but it may brown or dry on the outside before the center is ready, especially with a sweet glaze. The 350°F (177°C) oven gives the center time to cook more evenly. If you adjust the temperature, do not try to calculate safety from minutes alone: check the thickest part with a thermometer and reach 160°F (71°C).

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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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