Sheet Pan Roasted Italian Sausage with Peppers and Onions

By Lauren Mitchell, Test Kitchen Director · Reviewed by AislePrompt Editorial · Published 2026-05-12 · Updated 2026-05-12

A vibrant and hearty sheet pan meal featuring Italian sausage roasted alongside sweet bell peppers and onions, perfect for an easy weeknight dinner. This italian-inspired sheet pan ready in about 45 minutes pairs olive oil, garlic powder, dried oregano for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 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 links (about 1 lb) Italian sausage links
• 1 large, sliced into 1/2-inch strips red bell pepper
• 1 large, sliced into 1/2-inch strips yellow bell pepper
• 1 large, sliced into 1/2-inch strips green bell pepper
• 1 large, sliced into 1/2-inch strips yellow onion
• 3 tbsp olive oil
• 1 tsp garlic powder
• 1 tsp dried oregano
• 1 tsp salt
• 1/2 tsp black pepper
• 1/4 tsp (optional) red pepper flakes

Instructions

1. Step 1: Preheat oven to 425°F. Line a large sheet pan with foil for easy cleanup. Place 4 Italian sausage links (about 1 lb) on the pan.
2. Step 2: In a large bowl, combine 1 large sliced red bell pepper, 1 large sliced yellow bell pepper, 1 large sliced green bell pepper, and 1 large sliced yellow onion with 3 tbsp olive oil, 1 tsp garlic powder, 1 tsp dried oregano, 1 tsp salt, 1/2 tsp black pepper, and 1/4 tsp red pepper flakes if using. Toss until vegetables are evenly coated.
3. Step 3: Arrange the vegetables around the sausage links on the sheet pan in a single layer. Roast in the oven for 25-30 minutes, turning the sausage once halfway through and stirring the vegetables, until sausage is cooked through and vegetables are tender and slightly caramelized.