Mushroom and Feta Breakfast Casserole

Name: Mushroom and Feta Breakfast Casserole
Prep time: 20 min
Cook time: 35 min
Total time: 55 min
Cuisine: European, Mediterranean, Greek
Ingredients: 12 eggs; 1 T half and half (Probably optional, but I usually use it if I have some.); 1 pound, washed and sliced mushrooms (see notes); 2 tsp. olive oil (or more, depending on your pan); 1 cup crumbled Feta cheese (or more, see notes); 1/3 cup sliced green onions (optional, but good); 1 tsp. Spike Seasoning, or use any all-purpose seasoning blend that’s good on eggs; fresh ground black pepper to taste

Instructions

Prep:20minCook:35min

Mushroom and Feta Breakfast Casserole has two of my very favorite ingredients in a breakfast casserole that's low-carb, Keto, and gluten-free. This recipe makes 6 servings, but see the link in NOTES if you prefer the original recipe for 10 servings!

Updated at: Thu, 22 Oct 2026 00:19:19 GMT