Step 1

Preheat oven to 350°F | 180°C. Lightly spray a 12-cup capacity muffin tin with nonstick oil spray.

Step 2

In a large bowl, whisk together eggs and onion. Season with salt and pepper, to taste.

Step 3

Add egg mixture halfway up into each tin of a greased muffin tin.

Step 4

Divide the three topping combinations into 4 muffin cups each.

Step 5

Bake for 20 minutes.

Step 6

Serve OR store in an airtight container in the refrigerator for up to 4 days and reheat when ready to serve.

Step 7

Enjoy!