Ingredients
Equipment
Method
- Heat olive oil in a skillet over medium-high heat. Brown ground beef for 5-7 minutes, drain fat, and transfer to slow cooker.
- Sauté onions and garlic in the skillet for 3-4 minutes until fragrant, then add to slow cooker.
- Add marinara sauce, diced tomatoes, beef broth, water, Italian seasoning, basil, oregano, and red pepper flakes. Stir to combine.
- Nestle broken spaghetti noodles into the sauce, ensuring they are submerged.
- Cover and cook on low for 4-6 hours or high for 2-3 hours.
- Stir in mozzarella and Parmesan cheeses during the last 30 minutes.
Notes
Ensure noodles are submerged to cook evenly. Add cheese in the last 30 minutes to avoid graininess. Adjust liquid with extra broth if needed. Store refrigerated for up to 4 days or frozen for up to 3 months, reheating with broth to restore texture.