Prep the pan Grease a 12-count muffin tin or silicone mold well.
Tip: Silicone molds take longer to bake — details below.
Whisk the eggs In a medium bowl, whisk the eggs until smooth and combined.
Add veggies & mix-ins Stir in your chopped veggies, cheese, and seasonings.
Fill the muffin cups
Pour the mixture evenly, filling each cup about ¾ full to avoid overflow.
Bake
Metal muffin tin: 350°F for 15–18 minutes
Silicone mold: 350°F for 18–22 minutes The centers should be set, not jiggly.
Cool & serve Let them rest for 3–5 minutes before removing — they firm up as they cool.