4 eggs = 280 Calories.

1/2 ounce of cheddar and jack cheese blend = 55 calories.

2 ounces of eggplant = 20 Calories.

1/4 cup of onion = 16 Calories.

4 cherry tomatoes = 12 calories.

1/2 cup of spinach = 3 Calories.

I made a video on how to make a frittata. Click the link below to watch.