These are lower fat frittatas, full of protein, calcium, Vitamin A & riboflavin. You will need 150gr of spinach steamed, drained and chopped, 1 garlic clove chopped up, 2 eggs, 2 egg whites, 60ml skimmed milk and 6-18 cubes of low-fat feta cheese, salt and pepper. Mix everything except feta, put it into 6 muffin holes, add 1 – 3 feta cubes on top. With 3 feta cubes – each frittata has 8 grams of protein and only 80 calories! Fantastic snack! Even 2 will not break a bank! Enjoy!