This Spaghetti Alfredo bake is perfect for a quick weeknight dinner when you are short on time or energy. Not only comforting and tasty, but you also get the added bonus of having a hearty meal that's ready in under an hour!
Why You Will Love This Recipe
Are you looking for a delicious, easy-to-make dinner your whole family will love? Look no further than this easy spaghetti Alfredo bake! Spaghetti with Alfredo sauce is creamy, cheesy, and so simple to assemble - yet packed full of flavor.
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Ingredients
With just a few simple ingredients already likely already found in your kitchen, this dish makes the perfect weeknight supper when time or energy are running low.
Read on to find out how you can make this scrumptious entree yours tonight.
- Spaghetti - one 16 oz box will be needed, but you can use linguine, Fettuccine, or even Angel hair pasta instead.
- Ground Beef - or Beyond Meat if you prefer.
- Onion - diced.
- Garlic - fresh, minced.
- Italian seasoning blend - use our Italian seasoning recipe or your favorite store brand.
- Marinara or Pasta sauce - any brand, 24 oz.
- Butter - for the homemade Alfredo sauce.
- Cream - or Half and Half if you want this lighter.
- Parmesan cheese - grated pizza cheese or fresh grated Parmigiano Reggiano.
- Mozzarella cheese - shredded.
Full ingredient amounts and preparation instructions are in the printable recipe card at the bottom of this post.
How to Make Spaghetti Alfredo Bake
- Preheat the oven to 350° F. Prepare a 9 x 13 casserole dish with non stick cooking spray.
- Heat a pot of water on high until boiling and start cooking the spaghetti according to the instructions on the box. Drain and toss with a drizzle of olive so it does not stick together. Set cooked spaghetti aside in a a large bowl for later.
Prepare the Meat Sauce and the Alfredo Sauce
- Brown the ground beef, onion, and garlic in a large skillet over medium high heat. Break the ground beef up as it cooks. Drain excess fat off and keep in the skillet.
- Add the Marinara and Italian seasoning to the skillet of beef. Bring to a boil, then reduce the heat to low and simmer for 10 minutes while preparing the Alfredo sauce.
Full ingredient amounts and preparation instructions are in the printable recipe card at the bottom of this post.
Prepare the Alfredo Sauce
- Melt the butter in a saucepan. Stir in the cream and bring to a low simmer then add the Parmesan cheese.
- Stir the Alfredo sauce into the cooked spaghetti and toss to coat evenly.
Full ingredient amounts and preparation instructions are in the printable recipe card at the bottom of this post.
Spread Out the Spaghetti Alfredo
- Transfer the Alfredo and spaghetti to the casserole dish, spreading to create an even layer.
Full ingredient amounts and preparation instructions are in the printable recipe card at the bottom of this post.
Top the Alfredo Spaghetti Layer
- Add the meat Marinara sauce on top of the Alfredo spaghetti layer in the casserole.
Full ingredient amounts and preparation instructions are in the printable recipe card at the bottom of this post.
Spread Meat Sauce Evenly
- Evenly spread the meat Marinara mixture over the top of the Alfredo spaghetti.
Full ingredient amounts and preparation instructions are in the printable recipe card at the bottom of this post.
Top with Grated Mozzarella & Bake
- Top the meat sauce with the shredded Mozzarella cheese. Bake for 25 minutes in the preheated oven or until the cheese has melted and edges bubbly.
Full ingredient amounts and preparation instructions are in the printable recipe card at the bottom of this post.
Serving Suggestions
Make this spaghetti Alfredo recipe up ahead of time in your freezer, so you have a hasty dinner option on one of those work weary days. Serve with a tossed Caesar salad, or any green salad, and our Air Fryer Broccolini for a full meal!
Full ingredient amounts and preparation instructions are in the printable recipe card at the bottom of this post.
Substitutions & Variations
You can actually use any pasta you like when making this spaghetti Alfredo. Just cook the pasta according to the package directions, toss with a drizzle of olive oil so the pasta does not stick together while cooking the meat Marinara sauce and homemade Alfredo sauce.
You can also substitute the homemade Alfredo sauce for a jar of store bought Alfredo sauce!
Below are few variations you can make using this Alfredo spaghetti recipe:
- Spicy - add chili pepper flakes with the Marinara sauce cooking stage.
- Vegetarian - omit the ground beef entirely, or substitute it with Beyond Meat ground 'beef'.
- Primavera style - dice up red and green bell peppers, cherry tomatoes, and a small zucchini squash. Toss in with the onions the last 5 minutes and saute until just slightly cooked. Layer Primavera and Marinara mixture on top of the Alfredo spaghetti layer.
Equipment
Equipment can have a big impact on how a recipe turns out. Below are some of my favorite pieces of equipment that I use when making this dish.
Storage
Store the wet ingredients (lettuce, tomato, onion) separately from the dry ingredients (buns) in the fridge, and recombine when ready. Good for 2-3 days.
Tips for Success
- Toss the pasta with about 1 tablespoon of olive oil after cooking and draining in the colander. This will prevent the pasta from sticking together while cooking and assembling the spaghetti with Alfredo sauce
- Do substitute the homemade Alfredo sauce with store bought if you want an even faster shortcut!
- Split this spaghetti Alfredo recipe into two smaller 8 x 8 baking dishes, and freeze one for later!
Frequently Asked Questions
Yes! Make this spaghetti Alfredo recipe and cover the baking dish cooked or uncooked with aluminum foil. Bake the frozen uncooked casserole after letting it defrost overnight in the refrigerator for 35 minutes at 350 F. Warm up the previously cooked casserole on 250 F for 20 to 30 minutes.
Food Safety
- Do not use the same utensils on cooked food, that previously touched raw meat
- Wash hands after touching raw meat
- Don't leave food sitting out at room temperature for extended periods
- Never leave cooking food unattended
- Use oils with high smoking point to avoid harmful compounds
- Always have good ventilation when using a gas stove
See more guidelines at USDA.gov.
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📖 Recipe
Spaghetti Alfredo Bake
Equipment
Ingredients
- 16 oz uncooked spaghetti
- 1 lb ground beef
- 1 small onion diced
- 4 cloves garlic minced
- 2 teaspoon Italian Seasoning blend
- 24 oz Marinara sauce jarred
- 4 oz butter 1 stick
- 2 cup cream
- 1 cup Parmesan cheese grated, pizza type or fresh grated
- 2 cup Mozzarella cheese shredded
Instructions
- Preheat the oven to 350° F. Prepare a 9 x 13 casserole dish with non stick cooking spray.
- Heat a pot of water on high until boiling and start cooking the spaghetti according to the instructions on the box. Drain and toss with a drizzle of olive so it does not stick together. Set cooked spaghetti aside in a a large bowl for later.16 oz uncooked spaghetti
- Brown the ground beef, onion, and garlic in a large skillet over medium high heat. Break the ground beef up as it cooks. Drain excess fat off and keep in the skillet.1 lb ground beef, 1 small onion, 4 cloves garlic
- Add the Marinara sauce and Italian seasoning to the skillet of beef. Bring to a boil, then reduce the heat to low and simmer for 10 minutes while preparing the Alfredo sauce.24 oz Marinara sauce, 2 teaspoon Italian Seasoning blend
- Melt the butter in a medium saucepan over medium heat. Stir in the heavy cream and bring to a low simmer, stirring often. When the sauce starts to thicken slightly add the grated Parmesan cheese. Continue simmering, stirring often as sauce thickens. Remove from heat when sauce easily coats the spoon.4 oz butter, 2 cup cream, 1 cup Parmesan cheese
- Stir the Alfredo sauce into the cooked spaghetti and toss to coat evenly. Transfer the Alfredo and spaghetti to the casserole dish, spreading to create and even layer.
- Evenly spread the meat Marinara mixture evenly over the top of the Alfredo spaghetti. Top the meat sauce with the shredded Mozzarella cheese2 cup Mozzarella cheese
- Bake for 25 minutes in the preheated oven or until the cheese has melted and edges bubbly.
Notes
- Toss the pasta with about 1 tablespoon of olive oil after cooking and draining in the colander. This will prevent the pasta from sticking together while cooking and assembling the spaghetti with Alfredo sauce
- Do substitute the homemade Alfredo sauce with store bought if you want an even faster shortcut!
- Split this spaghetti Alfredo recipe into two smaller 8 x 8 baking dishes, and freeze one for later!
Nutrition
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