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Slow Cooker Lasagna

A cozy, hands-off classic that combines layers of noodles, rich tomato sauce, and creamy cheese, creating a warm and satisfying meal perfect for family dinners or gatherings.
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Prep Time 20 minutes
Cook Time 4 hours
Total Time 4 hours 20 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: Italian
Calories: 450
Ingredients Method Notes

Ingredients
  

Meat & Sauce
  • 1 pound ground beef or Italian sausage Swap for cooked lentils or crumbled tempeh for a vegetarian twist
  • 1 medium onion, finely chopped Red onion adds sweetness
  • 3 cloves garlic, minced
  • 24 ounces marinara or your favorite tomato sauce Use low-sodium for a healthier option
  • 1 large egg Helps set the ricotta; omit for a looser filling
  • 1 teaspoon dried basil Toast briefly for more depth
  • 1 teaspoon dried oregano Toast briefly for more depth
  • 1 pinch red pepper flakes Toast briefly for more depth
Cheese Layer
  • 15 ounces ricotta cheese Sub cottage cheese blended until smooth for a lighter version
  • 2 cups shredded mozzarella, plus extra for topping Try part-skim for fewer calories
  • 1/2 cup grated Parmesan or Pecorino Romano
Noodles & Vegetables
  • 8-10 pieces no-boil lasagna noodles Regular or whole wheat; broken noodles can be used in round slow cookers
  • 2 cups fresh spinach, chopped Can swap with kale for a stronger flavor

Method
 

Preparation
  1. Heat a skillet over medium heat with a drizzle of olive oil.
  2. Add onion and a pinch of salt; sauté until soft and translucent, about 5 minutes.
  3. Add garlic and cook 30 seconds until fragrant.
  4. Add ground beef or sausage and brown until no longer pink, breaking it into crumbles.
  5. Drain excess fat if needed.
  6. Stir in marinara, dried herbs, and red pepper flakes. Let the sauce simmer for a couple of minutes.
  7. In a bowl, combine ricotta, egg, half of the Parmesan, half of the mozzarella, chopped spinach, and a pinch of salt and pepper.
Assembly & Cooking
  1. Lightly grease the slow cooker with olive oil.
  2. Spoon a thin layer of meat sauce on the bottom.
  3. Layer no-boil lasagna noodles over the sauce.
  4. Dollop half the ricotta mixture over the noodles and spread gently.
  5. Top with one-third of the remaining sauce.
  6. Repeat the layers getting the remaining ricotta mixture and sauce on top.
  7. Cover and cook on low for 3.5–4 hours or on high for 2–3 hours.
  8. Let the lasagna rest with the lid off for 10–15 minutes before slicing.

Notes

Use no-boil noodles for consistent results; let the dish rest before cutting for clean slices. Can be frozen and reheated.