Egg muffin cups bake eggs with vegetables and cheese in muffin tins for a portable, high protein breakfast. Perfect for meal prep, clean eats, and calorie deficit plans, these family-friendly cups reheat beautifully.
Preheat your oven to 350°F (175°C) and lightly grease a 12-cup muffin tin with olive oil to prevent sticking.
In a large mixing bowl, crack in the eggs and whisk until fully combined and frothy for a fluffy texture.
Add shredded cheddar cheese, chopped red bell pepper, chopped baby spinach, and sliced green onions to the eggs; stir to evenly distribute the vegetables.
Season the mixture with salt and black pepper, ensuring an even spread, then pour the mixture evenly into the prepared muffin tin cups, filling each about 3/4 full.
Bake in the preheated oven for 18–20 minutes, or until the eggs are fully set and slightly golden around the edges; let the cups cool for 5 minutes before loosening with a knife and removing from the tin.