This High Protein Baked Spaghetti Casserole is hearty, satisfying, and packed with flavor. Bring a large pot of salted water to a boil. Cook spaghetti until al dente according to package instructions. Drain and set aside. Heat olive oil in a large skillet over medium heat. Add onion and cook until softened, about 3 minutes. In a bowl, mix cottage cheese, Greek yogurt (or ricotta), egg, and half of the Parmesan cheese until smooth. Preheat oven to 375°F (190°C). Bake uncovered for 30–35 minutes, until cheese is melted and bubbly. Let rest for 10 minutes before slicing. Garnish with parsley if desired.High Protein Baked Spaghetti Casserole
Ingredients
Instructions
1. Cook the Pasta
2. Prepare the Meat Sauce
Add garlic and cook for 30 seconds.
Stir in ground meat and cook until browned. Drain excess fat if needed.
Add marinara sauce, Italian seasoning, salt, and pepper. Simmer for 5 minutes.3. Make the Protein Layer
4. Assemble the Casserole
Lightly grease a 9x13-inch baking dish.
Spread half of the spaghetti in the dish.
Layer half of the meat sauce over pasta.
Spread the cottage cheese mixture evenly on top.
Add remaining spaghetti and meat sauce.
Top with mozzarella and remaining Parmesan cheese.5. Bake
6. Rest and Serve
Notes

This High Protein Baked Spaghetti Casserole is hearty, satisfying, and packed with flavor. Tender spaghetti is layered with a protein-rich sauce and baked until bubbly and golden, creating a comforting dish that fuels you without sacrificing taste.
Perfect for meal prep or family dinners, this casserole delivers classic baked pasta comfort with a nutritious twist. It’s a filling, balanced recipe that makes healthy eating feel easy and delicious.
