This easy 5-ingredient jar sauce lasagna recipe gives you a bubbling, cheesy homemade dinner with only lean ground beef, jarred pasta sauce, ricotta, oven-ready lasagna noodles, and mozzarella. Brown the beef, stir in the sauce, layer everything in a 13-by-9-inch baking dish, then bake covered for 45 minutes and uncovered for about 10 minutes.
The result is classic comfort food with tender noodles, savory tomato meat sauce, creamy ricotta pockets, and a golden mozzarella topping. With just 15 to 20 minutes of preparation and a 10-minute rest before slicing, it is a practical family meal for busy nights, casual Sunday dinners, or cozy gatherings.
Jump to RecipeWhy You’ll Love This Recipe

This lasagna is proof that a short ingredient list can still produce a deeply satisfying dinner. Jarred sauce supplies the tomato base and seasoning, while browned beef adds hearty texture without requiring a long simmer.
Ricotta makes the center creamy, oven-ready noodles keep preparation simple, and mozzarella creates the familiar stretchy, golden topping everyone looks forward to. There is no need to boil noodles, prepare a separate cheese sauce, or assemble a complicated filling.
The recipe is also easy to fit into a busy schedule. You can brown the beef and assemble the dish in about 15 to 20 minutes, then let the oven handle the rest while you prepare a salad or set the table.
For another comforting dinner idea, you may also enjoy this easy tortellini soup when you want a saucy, cozy meal in a bowl.
Ingredients You’ll Need

Everything for this recipe is easy to find at a standard grocery store. Use the quantities below for a full 13-by-9-inch pan with generous, satisfying layers.
- 1 pound lean ground beef: Choose lean beef for a meaty sauce with less excess fat to drain.
- 1 jar, 26 ounces, tomato-basil or marinara pasta sauce: Select a sauce you already enjoy because its flavor will define the tomato layer.
- 1 container, 15 ounces, ricotta cheese: Ricotta adds a soft, creamy contrast to the savory meat sauce.
- 1 package, 9 ounces, oven-ready lasagna noodles: These no-boil noodles go directly into the dish and soften as they absorb moisture.
- 2 cups shredded mozzarella cheese: Divide it between the layers and the top for melted cheese in every serving.
No extra water, eggs, herbs, or specialty seasonings are required for the researched five-ingredient method. Keeping the ingredient list focused also makes shopping quick and cleanup manageable.
If you are planning a dessert for the same meal, these bakery-style blueberry muffins are a simple option for breakfast or an after-dinner treat.
How to Make It Step-by-Step

Step 1: Heat your oven to 375°F and position the rack in the center. Starting with a fully heated oven helps the lasagna bake at the intended temperature from the moment it goes in.
Step 2: Place the lean ground beef in a skillet over medium heat. Break it into small pieces with a spatula and cook until no pink remains, then carefully drain excess fat from the skillet.
Step 3: Pour the jarred tomato-basil or marinara sauce into the skillet with the beef. Stir until the meat is evenly coated and the sauce is distributed throughout; a brief warming period is all that is needed.
Step 4: Spread about 1 cup of the meat sauce over the bottom of a 13-by-9-inch baking dish. This thin first layer helps cover the base and gives the bottom noodles moisture as they bake.
Step 5: Add a layer of oven-ready lasagna noodles over the sauce, arranging them to cover as much of the dish as possible. Spoon half of the ricotta over the noodles, add more meat sauce, and scatter part of the mozzarella over the top.
Step 6: Repeat the layering process with another layer of noodles, the remaining ricotta, more meat sauce, and more mozzarella. Spread the ricotta gently rather than pressing hard, since the noodles may shift while you assemble the pan.
Step 7: Finish the dish with a final layer of noodles, the remaining meat sauce, and the remaining mozzarella. Make sure the sauce reaches the edges of the top noodles so they have enough moisture to soften.
Step 8: Cover the baking dish tightly with aluminum foil and bake for 45 minutes at 375°F. A snug foil seal is important because the trapped steam helps the oven-ready noodles absorb sauce and become tender.
Step 9: Remove the foil and return the lasagna to the oven for about 10 minutes. Continue baking until the mozzarella is fully melted and lightly browned in spots.
Step 10: Remove the pan from the oven and let it stand for 10 minutes before cutting. This short rest allows the layers to settle, keeps the cheese from sliding immediately, and helps you serve cleaner portions.
Pro Tips for Reliable Layers

The most important detail is covering the dish tightly during the first bake. Oven-ready noodles depend on moisture from the sauce and steam inside the covered pan, so loose foil can leave the edges or upper noodles firmer than desired.
Use enough sauce around the noodles, especially along the edges and on the final layer. The sauce should not be spread so thin that dry noodle corners are exposed.
Drain the beef thoroughly but do not cook the sauce down for a long time. The recipe relies on the moisture in the jarred sauce to soften the no-boil noodles while the lasagna bakes.
For attractive slices, resist cutting immediately. The 10-minute resting time is part of the method, not an optional extra; it gives the ricotta and sauce time to settle between the pasta layers.
For a beautifully crisp cheese surface, remove the foil only for the final 10 minutes. Leaving the pan uncovered for the entire bake can dry the top before the noodles have fully softened.
When serving a family-style spread, a sweet finish such as these delish pina colada bars pairs nicely with the rich, savory main course.
Serving Suggestions

Serve each portion while it is warm, making sure every plate gets plenty of sauce, ricotta, noodles, and melted mozzarella. The lasagna is hearty on its own, but a crisp green salad or simply dressed vegetables can add freshness to the meal.
Warm, crusty bread is another natural partner because it can catch the extra tomato sauce. Keep the side dishes lightly seasoned so they do not compete with the rich layers in the main dish.
This recipe is especially useful for casual entertaining because it can be assembled in one baking dish and brought straight to the table after resting. Place the pan on a heat-safe surface and use a sharp knife or sturdy spatula for serving.
For a festive pastry idea on another occasion, take a look at these easy Christmas tree pastries. They make a cheerful addition to a holiday brunch or dessert table.
Storage and Reheating

Cool leftover lasagna, cover it, and refrigerate it promptly. Store portions in airtight containers or keep the baking dish covered for convenient reheating over the next few days.
Reheat individual portions until hot throughout. A covered portion helps retain moisture, while a short uncovered finish can bring back some of the melted-cheese texture on top.
You can also prepare the dish ahead for a planned meal, but make sure the lasagna is covered tightly before baking. Since the noodles need sauce moisture to soften, avoid leaving assembled noodles exposed to air for an extended time.
Leftovers are often even more flavorful after the sauce and cheese have had time to mingle. Cut only what you plan to serve and keep the remaining portion covered so it stays moist.
Easy Variations Without Losing the Five-Ingredient Spirit
The simplest way to change the flavor is to choose a different jarred sauce. A classic marinara gives a bright tomato taste, while a tomato-basil sauce brings a softer herbal note without adding another ingredient.
You can also change the balance of cheese by distributing the ricotta in smaller spoonfuls across each layer. This creates creamy bites throughout the lasagna instead of one concentrated layer.
For a milder family dinner, use a gentle marinara and a well-drained lean beef. For a more robust result, choose a boldly seasoned tomato-basil sauce while keeping the quantities and baking method the same.

Easy 5-Ingredient Jar Sauce Lasagna
Ingredients
Method
- Heat the oven to 375°F. Brown the lean ground beef in a skillet over medium heat, breaking it into small crumbles as it cooks, then drain any excess fat.
- Stir the 26-ounce jar of tomato-basil or marinara pasta sauce into the cooked beef. Warm the mixture briefly so the sauce and meat are evenly combined.
- Spread about 1 cup of the meat sauce over the bottom of a 13-by-9-inch baking dish. Add a layer of oven-ready noodles, half of the ricotta, more meat sauce, and part of the mozzarella.
- Repeat the layers with noodles, the remaining ricotta, more meat sauce, and more mozzarella. Finish with noodles, the remaining meat sauce, and the remaining mozzarella.
- Cover the baking dish tightly with aluminum foil and bake for 45 minutes. Remove the foil and bake for about 10 minutes more, until the cheese is melted and lightly browned.
- Let the lasagna stand for 10 minutes before cutting. This resting period allows the layers to set and makes the slices easier to serve.
Notes
Final Thoughts
This easy 5-ingredient jar sauce lasagna delivers the comfort of a slow-cooked favorite without a long ingredient list or complicated prep. Brown the beef, combine it with sauce, layer the noodles and cheeses, and let the covered baking dish do the work.
Remember the three details that matter most: use the specified 26-ounce jar of sauce, cover the pan tightly for the first 45 minutes, and rest the finished lasagna for 10 minutes before slicing. Those steps help produce tender noodles, moist layers, and servings that hold together beautifully.
Once you taste the bubbling mozzarella, savory beef sauce, and creamy ricotta in every forkful, this practical recipe is likely to become a regular part of your dinner rotation.