
Make breakfast egg muffin cups with just a muffin tin, eggs, cheese, and vegetables. Great for meal prepping and grab-and-go breakfast!
Preheat the oven to 350°F. Line a 12-cup muffin pan with silicone cups or parchment paper cups.
Crack the eggs into a large bowl or measuring cup with a spout. Add the milk, oregano, salt and pepper, and whisk until smooth. Set aside.
Add the spinach, peppers, onions and cheese into the muffin cups. Pour the egg mixture over on top (about ⅓ cup per muffin cup)
Bake for 18-22 minutes or until the eggs are puffed.
Cool for 5 minutes in the pan. Then run a butter knife around the edges to help loosen them if needed. Serve immediately.