Fluffy egg and vegetable frittata slices layered with melted cheddar and tucked into warm whole wheat English muffins — the perfect protein-packed, make-ahead breakfast sandwich.
Author:Asma
Prep Time:10 minutes
Cook Time:22 minutes
Total Time:32 minutes
Yield:6 sandwiches 1x
Category:Breakfast
Method:Baking
Cuisine:American
Diet:Low Calorie
Ingredients
UnitsScale
6 large eggs
4 egg whites
1/2 white onion, diced
1cup cherry tomatoes, halved
5oz fresh spinach
1/4cup shredded cheddar cheese
1/2 tsp kosher salt
1/4 tsp ground black pepper
Cooking spray or 2 tsp olive oil
6 sourdough or whole wheat English muffins
Instructions
Preheat oven to 375°F (190°C). Lightly grease a 9×13 inch baking dish with cooking spray or olive oil.
In a skillet over medium heat, sauté onion for 2–3 minutes. Add spinach and cook until wilted. Stir in halved cherry tomatoes and cook for another minute. Remove from heat.
In a mixing bowl, whisk together eggs and egg whites with salt and pepper. Stir in cooked vegetables and pour into the prepared baking dish.
Bake for 18–22 minutes, until set. Let cool slightly, then cut into 6 equal squares or rounds.
Toast English muffins and place a slice of cheddar cheese on the bottom half of each.
Top with an egg portion and sandwich with the top half of the muffin.
Serve immediately, or wrap and refrigerate/freeze for a grab-and-go breakfast.
Notes
Use silicone muffin molds for individual portions if preferred.
Substitute veggies based on what’s in season.
Add hot sauce or avocado for extra flavor.
Wrap tightly in foil or parchment for freezer storage up to 1 month.