Place rack in middle of oven. Preheat oven to 450 degrees. Line a rimmed baking sheet with parchment paper. Set aside.
Step 2
To a large bowl, add gnocchi, peppers, tomatoes, onions, garlic, rosemary, salt and pepper. Drizzle with olive oil and toss until well combined. Spread mixture evenly on prepared sheet.
Step 3
Roast, tossing halfway thorugh, until gnocchi begin to plum and veggies are tender and lightly browned, about 20 minutes.
Step 4
Serve in individual bowls garnished with fresh basil and parmesan cheese.