Bacon Spinach & Mushroom Egg White Omelette

Bahan-bahan (2 porsi)

• 6 large egg whites
• 2 tsp unsalted butter
• 4 strips of cooked bacon (crumbled)
• 6 medium mushrooms (sliced)
• 1 Tbsp olive oil
• 1/2 cup fresh spinach leaves (stems removed)
• 1/2 cup Colby Jack Cheese (finely shredded)
• 1 roma tomato (diced)
• Fresh Chives (to garnish (optional))
• Salt and Pepper (to taste)