Name: Baked Spaghetti Casserole Recipe
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Cuisine: Italian-American
Ingredients: 1 (16-oz) package spaghetti (uncooked); 1 tablespoon oil; 1 tablespoon oil; 1 pound ground beef; Salt & pepper to taste; 1/2 teaspoon garlic powder; 1 medium onion, diced (about 1 cup); 2 sticks celery, diced (about 1 cup); 2 teaspoons Italian seasoning; 2 tablespoons tomato paste; 1 (15-oz) can diced tomatoes; 1 (8-oz) package cream cheese, softened; 1 cup ricotta cheese; 1/4 cup sour cream; 1 (8-oz) package shredded mozzarella cheese

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There’s something wonderfully comforting about a meal that brings together hearty flavors and gooey, melty cheese in one delightful dish. This Baked Spaghetti Casserole Recipe does just that by combining perfectly cooked spaghetti, savory ground beef, and a luscious blend of cheeses baked to bubbly perfection. It’s like your favorite pasta and lasagna had a scrumptious baby – easy to prepare, family-friendly, and ideal for cozy dinners that everyone will rave about.

Ingredients You'll Need

A flat lay image of various ingredients for a meal displayed on a white marbled surface. Starting from the top left, there is a blue box of spaghetti pasta, followed by two small wooden bowls containing salt and black pepper. Below the bowls is a whole yellow onion, two celery stalks lying diagonally from the bottom center to the top right, and a packet of shredded mozzarella cheese with green and purple on the packaging. On the bottom left is a white tray of ground beef with a pink label, next to a clear bottle of olive oil with a spout, a can of tomato paste, a can of diced tomatoes, a small jar of Italian herb blend, a container of garlic powder, a carton of ground nutmeg, a round white container of sour cream, a round white container of ricotta cheese with a green label, a block of cream cheese in white packaging, and a wedge of parmesan cheese with a yellow label on the far right. photo taken with an iphone --ar 4:5 --v 7

Each ingredient in this Baked Spaghetti Casserole Recipe plays a crucial role, from building layers of flavor to creating a satisfying texture and vibrant appeal. These straightforward components come together effortlessly, making this dish both approachable and unforgettable.

Spaghetti (1 16-oz package): The backbone of the casserole, it soaks up all the savory flavors perfectly.

Oil (2 tablespoons): Used twice—once for the pasta to keep it from sticking, and once to brown the beef for a rich taste.
Ground beef (1 pound): Adds meaty richness that makes the dish hearty and filling.
Salt & pepper (to taste): Simple seasonings that elevate every other ingredient.

Garlic powder (½ teaspoon): Infuses a warm, aromatic touch without overpowering.
Onion (1 medium, diced): Offers sweetness and depth when cooked down.
Celery (2 sticks, diced): Adds a subtle crunch and fresh flavor contrast.

Italian seasoning (2 teaspoons): Provides that classic herb blend that ties Italian dishes together beautifully.
Tomato paste (2 tablespoons): Concentrates tomato flavor and adds richness.
Diced tomatoes (1 15-oz can): Brings brightness and moisture to the sauce.

Cream cheese (1 8-oz package, softened): Makes the cheese layer ultra creamy and luscious.
Ricotta cheese (1 cup): Adds lightness and a smooth texture to the creamy mix.
Sour cream (¼ cup): Provides a slight tang that balances the richness.

Shredded mozzarella cheese (1 8-oz package): Melts beautifully on top for the iconic golden crust.

How to Make Baked Spaghetti Casserole Recipe

Step 1: Get Started

Preheat your oven to 350°F and grease a deep 13×9-inch baking dish. This ensures your casserole won’t stick and will come out perfectly when baked. While the oven warms up, gather all your ingredients to streamline the cooking process.

Step 2: Cook the Spaghetti

Cook the spaghetti according to the package instructions until it’s al dente. Drain it well, return it to the pot, and drizzle with one tablespoon of oil to prevent sticking. Cover the pot and set the pasta aside while you prepare the savory meat sauce.

Step 3: Brown the Beef and Vegetables

Heat another tablespoon of oil in a large skillet over medium-high heat. Add the ground beef along with salt, pepper, and garlic powder, cooking it until it’s nicely browned and flavorful. If there’s excess grease, drain it to keep the dish balanced. Then, toss in the diced onion and celery, cooking them until they soften, about 5 to 6 minutes – this builds a wonderful base for your sauce.

Step 4: Make the Tomato Sauce

Lower the heat to medium and stir in the Italian seasoning and tomato paste to the beef mixture, mixing until fully incorporated. Add the canned diced tomatoes and let everything simmer for about 5 minutes. This simmering step deepens the flavors and allows the sauce to thicken slightly before assembly.

Step 5: Stir Up the Cheese Layer

In a bowl, blend together the softened cream cheese, ricotta, and sour cream until smooth and creamy. Don’t worry about being perfect here—it just needs to be well combined to create the luscious, velvety layer that will elevate the entire casserole.

Step 6: Put It Together

Begin layering your casserole by spreading about one-quarter of the meat sauce at the bottom of your prepared baking dish. Next, add half of the cooked spaghetti on top, then spread the creamy cheese mixture evenly over. Layer the rest of the spaghetti above the cheese, spoon the remaining meat sauce over it all, and finish by sprinkling shredded mozzarella on top for that irresistible golden crust.

Step 7: Bake

Bake the casserole uncovered at 350°F for 35 to 45 minutes. You’ll know it’s ready when it’s bubbling hot and the cheese has melted into a gorgeous, slightly browned layer. Let it rest for a few minutes before serving—that way, it sets nicely and is easier to portion out.

How to Serve Baked Spaghetti Casserole Recipe

The dish is a baked pasta served in a white rectangular casserole dish with handles on each side, placed on a white marbled surface. The bottom layer consists of thin yellow noodles spread evenly across the dish. On top of the noodles is a layer of cooked ground meat mixed with small chunks of red tomato pieces. The top layer is lightly browned melted cheese that covers the meat and tomato layer, sprinkled with small bits of green herbs for color contrast. The edges of the casserole show the noodles slightly peeking out under the meat and cheese layers. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

A sprinkle of freshly chopped parsley or basil adds a pop of color and a hint of herbal freshness that beautifully contrasts the casserole’s richness. A light dusting of grated Parmesan can also amplify the cheesy notes and make every bite even more decadent.

Side Dishes

This Baked Spaghetti Casserole Recipe pairs incredibly well with a crisp green salad tossed in a simple vinaigrette to cut through the richness. Steamed or roasted vegetables such as broccoli or green beans also make excellent accompaniments, adding texture and nutrition.

Creative Ways to Present

For a cozy family meal, serve this casserole in the baking dish itself and let everyone scoop out their portions. For something more festive, try plating individual portions with a drizzle of extra virgin olive oil and a few twists of freshly cracked black pepper. You can also add a dollop of fresh ricotta on top for an elegant touch that guests will love.

Make Ahead and Storage

Storing Leftovers

Once cooled, cover any leftover casserole tightly and store it in the refrigerator for up to 3 days. The flavors meld beautifully, making the next day just as delicious as the first.

Freezing

This dish freezes wonderfully. Portion it into airtight containers or cover the entire casserole tightly with plastic wrap and foil before freezing. It will keep well for up to 2 months, perfect for busy nights when you want a comforting meal without the fuss.

Reheating

Reheat leftovers in the oven at 350°F for about 20 minutes until heated through and bubbly again. You can also microwave individual portions, but reheating low and slow in the oven preserves that fresh-baked texture and flavor best.

FAQs

Can I use ground turkey or chicken instead of ground beef?

Absolutely! Ground turkey or chicken can be a leaner alternative and will work well with the other flavors, though the dish will have a slightly different taste and texture.

Is there a way to make this recipe vegetarian?

You can omit the meat and add vegetables like mushrooms, zucchini, or eggplant for a delicious vegetarian version. Using a plant-based meat substitute also works perfectly.

Can I prepare this casserole ahead of time before baking?

Yes! Assemble the casserole in the baking dish, cover it, and store it in the refrigerator for up to 24 hours before baking. This makes meal prep super convenient for busy days.

What cheese can I substitute if I don’t have ricotta?

Cottage cheese is a great substitute that provides similar creaminess. Just make sure to drain it well to avoid excess moisture in the casserole.

How can I make this casserole spicier?

Add a pinch of red pepper flakes to the meat sauce or incorporate some diced jalapeños into the cheese mixture for a subtle kick that elevates the dish.

Final Thoughts

I can’t recommend this Baked Spaghetti Casserole Recipe enough for anyone craving an easy, hearty meal with comforting flavors and cheesy goodness baked right in. Whether for a weeknight family dinner or casual get-together, this dish is sure to become one of your go-to favorites. So preheat that oven, gather your ingredients, and get ready to enjoy a plate full of warmth and happiness!

Baked Spaghetti Casserole Recipe

Ingredients You'll Need