A savory mushroom and Swiss omelet features earthy sautéed mushrooms and melted Swiss cheese folded into fluffy eggs. This high protein, vegetarian breakfast is elegant, satisfying, and ready in minutes.
Slice the fresh mushrooms evenly, ensuring uniform thickness for even cooking.
Heat 1 tablespoon butter in a nonstick skillet over medium-high heat; sauté mushrooms for 4–5 minutes until golden and moisture evaporates.
In a bowl, whisk eggs thoroughly with salt and pepper until the mixture is light and slightly frothy for a fluffy omelet texture.
Wipe out the skillet, reduce heat to medium-low, and add the remaining tablespoon of butter. Pour in the eggs; gently stir with a spatula until edges set but center remains soft.
Evenly distribute sautéed mushrooms and Swiss cheese over the eggs. Fold omelet in half; cover and cook another 1–2 minutes until the cheese melts. Serve immediately while warm.