All in One: Easy Egg Bread with Creamy Cheese Sauce

Sautéing the Base: Heat a large oven-safe skillet over medium heat. Add the crumbled Italian sausage and cook until browned, breaking it up with a spoon as it cooks. This forms the savory foundation of your frittata.
Veggies Join the Party: Once the sausage is cooked, add the chopped onion, red bell pepper, and mushrooms to the pan. Sauté for 5-7 minutes, or until the vegetables are softened. Add the minced garlic and cook for an additional minute, allowing the fragrant garlic to release its aroma.
The Egg Mixture: In a large bowl, whisk together the eggs and milk. Season generously with salt and black pepper. This creates a fluffy and flavorful egg base that will bind everything together.