Deep-Dish Style Baked Italian Sausage and Peppers

By AislePrompt Editorial · Published 2026-05-17 · Updated 2026-05-17

A hearty baked casserole inspired by Chicago's famous deep-dish pizza flavors, combining Italian sausage with roasted bell peppers, onions, and a rich tomato sauce. This Italian-inspired pork recipe, ready in about 45 minutes, pairs Italian sausage links, red bell pepper, green bell pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 calories and feeds 4, 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

• 4 (12 oz total) Italian sausage links
• 1 medium, sliced into 1/2-inch strips red bell pepper
• 1 medium, sliced into 1/2-inch strips green bell pepper
• 1 medium, sliced into thin rings yellow onion
• 2 tbsp olive oil
• 1 can (14 oz) crushed tomatoes
• 1 tsp dried oregano
• 1 tsp dried basil
• 1 cup shredded mozzarella cheese
• 1/4 cup grated Parmesan cheese
• 1 tsp salt
• 1/2 tsp black pepper

The pan we’d use for this → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Preheat oven to 375°F. Slice 4 Italian sausage links (12 oz total) into 1/2-inch pieces. Heat 2 tbsp olive oil in a large ovenproof skillet over medium heat and brown the sausage pieces for 6-7 minutes until cooked through and slightly caramelized.
2. Step 2: Add 1 medium sliced red bell pepper, 1 medium sliced green bell pepper, and 1 medium sliced yellow onion to the skillet. Sauté with the sausage for 5 minutes until vegetables soften.
3. Step 3: Stir in 1 can (14 oz) crushed tomatoes, 1 tsp dried oregano, 1 tsp dried basil, 1 tsp salt, and 1/2 tsp black pepper. Simmer for 5 minutes until sauce thickens slightly.
4. Step 4: Sprinkle 1 cup shredded mozzarella cheese evenly over the mixture, then top with 1/4 cup grated Parmesan cheese. Transfer skillet to the oven and bake uncovered for 15 minutes until cheese is bubbly and golden.
5. Step 5: Remove from oven and let rest for 5 minutes before serving this rich, comforting dish.