# What You'll Need:
→ Pasta
01 - 1 pound spaghetti
→ Meat Sauce
02 - 1 pound ground beef
03 - 1/2 pound Italian sausage, casings removed
04 - 1 medium yellow onion, diced
05 - 3 cloves garlic, minced
06 - 24 oz jar marinara sauce
07 - 1 teaspoon dried Italian herbs
08 - 1/2 teaspoon salt
09 - 1/4 teaspoon black pepper
→ Alfredo Layer
10 - 15 oz container ricotta cheese
11 - 1 cup Alfredo sauce
12 - 1/2 cup sour cream
13 - 1 large egg
→ Cheeses
14 - 2 cups shredded mozzarella cheese
15 - 1 cup shredded Parmesan cheese
# How to Make It:
01 - Preheat oven to 350°F. Lightly grease a 9x13-inch baking dish.
02 - Boil spaghetti according to package instructions until just al dente. Drain and set aside.
03 - In a large skillet over medium-high heat, cook ground beef and Italian sausage until browned, breaking up meat with a spoon. Drain excess fat.
04 - Add diced onion and minced garlic to the meat. Sauté for 3 to 4 minutes until softened.
05 - Stir in marinara sauce, dried Italian herbs, salt, and black pepper. Let simmer for 5 minutes, then remove from heat.
06 - In a bowl, mix ricotta cheese, Alfredo sauce, sour cream, and the large egg until smooth.
07 - Spread half of the cooked spaghetti in the baking dish. Layer half of the Alfredo mixture evenly over spaghetti, then half of the meat sauce. Sprinkle with 1 cup mozzarella and 1/2 cup Parmesan cheese.
08 - Repeat layers with remaining spaghetti, Alfredo mixture, meat sauce, then top with remaining mozzarella and Parmesan cheese.
09 - Cover with foil and bake for 30 minutes. Remove foil and bake an additional 10 minutes until cheese is golden and bubbling.
10 - Let the casserole rest for 10 minutes before slicing and serving.
