Jenelle's Frittata Muffins

Ingredients

• 4 eggs, lightly beaten
• 2 medium mushrooms, diced
• ½ small red capsicum, diced
• 1 small zucchini (or ½ large) grated
• ¼ cup chopped spring onions (aka. green onions or shallots), around 1 medium length stem
• 1/3 cup grated cheddar cheese
• Handful of baby spinach, roughly torn
• Black pepper
• Extra virgin olive oil