Start your day right with this Denver Style Frittata recipe. Made with butter, mushrooms, green pepper and onion. Easy step-by-step instructions included.
This Denver Style Frittata relies on simple, everyday ingredients such as butter, mushrooms, sliced, green pepper, chopped and onion, finely chopped. It comes together quickly and makes 4 servings, at about 543 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's an easy way to start the day, whether you're cooking a relaxed weekend breakfast or need something satisfying before a busy morning. Pair it with fresh fruit or your favorite hot drink to round out the meal.
Updated Jun 30, 2026