About This Recipe
Slow cooker ravioli lasagna is a simplified version of traditional lasagna that uses frozen cheese ravioli in place of pasta sheets and ricotta filling. This method leverages the slow cooker to create a hands-off, layered casserole. The result is a deeply melded, hearty dish with the classic flavors of lasagna without the extensive prep work.
Why You’ll Love This Recipe
This recipe requires minimal active preparation time. The slow cooker does the majority of the work, making it a convenient option for weeknights or busy days. Using frozen ravioli eliminates the need to boil noodles or prepare a cheese filling, streamlining the entire process. The extended cooking time allows the flavors to develop fully.
Ingredients
- 1 (24-26 ounce) jar marinara or pasta sauce
- 1 pound ground Italian sausage or ground beef, browned and drained (optional)
- 2 (25 ounce) bags frozen cheese ravioli
- 1 (16 ounce) bag shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
- 2 cups fresh spinach (optional)
Step by Step Instructions
- If using meat, brown the ground Italian sausage or beef in a skillet over medium-high heat until fully cooked. Drain any excess fat.
- Spread a thin layer of marinara sauce on the bottom of the slow cooker insert.
- Arrange a single layer of frozen ravioli over the sauce.
- Sprinkle a portion of the cooked meat (if using) and a handful of spinach (if using) over the ravioli.
- Drizzle a layer of sauce over the meat and spinach.
- Sprinkle a generous layer of mozzarella cheese over the sauce.
- Repeat the layers (ravioli, meat, spinach, sauce, cheese) until all ingredients are used, finishing with a top layer of sauce.
- Sprinkle the top with the remaining mozzarella and the Parmesan cheese.
- Cover and cook on LOW for 4-5 hours or on HIGH for 2-3 hours, until the cheese is melted and bubbly and the ravioli is tender.
- Let the lasagna stand for 15 minutes with the slow cooker turned off and the lid slightly ajar before serving.
FAQ
Can I use fresh ravioli instead of frozen?
Yes, fresh ravioli can be used. The cooking time may need to be reduced slightly to prevent overcooking.
Do I need to thaw the ravioli first?
No, the ravioli should be used directly from the freezer. There is no need to thaw them beforehand.
Can I make this recipe vegetarian?
Yes, omit the meat and use a vegetarian marinara sauce. Adding vegetables like spinach, zucchini, or mushrooms is recommended.
You Must Know
The total cooking time can vary between slow cooker models. The lasagna is done when the cheese is fully melted and the edges are bubbling. Letting the lasagna rest after cooking is crucial for easier serving, as it allows the layers to set.
Storage Tips
Allow leftover ravioli lasagna to cool completely. Store in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave. This dish can also be frozen for up to 3 months. Thaw in the refrigerator overnight before reheating.