Slow Cooker Ravioli Lasagna Casserole

By AislePrompt Editorial · Published 2026-05-23 · Updated 2026-05-23

Layers of cheese-filled ravioli, marinara sauce, and Italian sausage slow-cooked to a bubbling, hearty casserole perfect for a family dinner. This Italian-inspired slow-cooker recipe, ready in about 260 minutes, pairs frozen cheese ravioli, Italian sausage, marinara sauce for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 530 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 1 pound frozen cheese ravioli
• 1 pound, casing removed Italian sausage
• 4 cups marinara sauce
• 2 cups shredded mozzarella cheese
• 1/2 cup grated Parmesan cheese
• 1 teaspoon dried basil
• 1 teaspoon dried oregano
• 2 cloves minced garlic
• 1 tablespoon olive oil
• 1 teaspoon salt
• 1/2 teaspoon black pepper

The slow cooker we’d leave this in all day → Best Slow Cookers in 2026: Top Picks + Buying Guide

Instructions

1. Step 1: In a skillet over medium heat, heat 1 tablespoon olive oil. Add 1 pound Italian sausage and 2 cloves minced garlic, breaking up the sausage with a spoon. Cook for 6-8 minutes until browned and cooked through.
2. Step 2: In the slow cooker, spread 1 cup marinara sauce evenly on the bottom. Add half of the 1 pound frozen cheese ravioli in a single layer and top with half of the cooked sausage mixture.
3. Step 3: Sprinkle 1 cup shredded mozzarella cheese, 1/4 cup grated Parmesan cheese, 1/2 teaspoon salt, 1/4 teaspoon black pepper, 1/2 teaspoon dried basil, and 1/2 teaspoon dried oregano over the sausage layer.
4. Step 4: Repeat the layering with remaining marinara sauce, ravioli, sausage, and cheeses. Cover the slow cooker.
5. Step 5: Cook on low for 3-4 hours until ravioli are cooked through and cheese is melted and bubbly.
6. Step 6: Let the casserole rest for 10 minutes before serving to allow it to set slightly.