Add all of the ingredients except for the gnocchi to a large baking sheet. (Break up the ground sausage into small pieces).
1 pound ground Italian sausage, 1 red pepper, 1 yellow pepper, 1 green pepper, 1 zucchini, 10 ounces grape or cherry tomatoes, 1 tablespoon extra virgin olive oil, 1 teaspoon Italian seasoning, 1 teaspoon garlic powder, ½ teaspoon red pepper flakes, ½ teaspoon Kosher salt, ½ teaspoon freshly cracked black pepper