Italian Sausage Tortellini Bake

Heat a large saucepan over medium heat. Crumble sausage into the pan; add onion and bell pepper. Cook and stir until sausage is completely browned, 7 to 10 minutes. Drain grease.

Add marinara sauce and tomatoes to sausage mixture; stir in garlic powder. Bring to a simmer, reduce heat to medium-low, and cook until tomatoes break down into sauce, 30 to 45 minutes.

Meanwhile, preheat the oven to 350 degrees F (175 degrees C).