This Healthy Ricotta Toast recipe is just 98 calories per slice, and so easy to make!I know you'll love this low calorie ricotta toast recipe. It makes a great snack, or have 2 slices for a healthy breakfast. Special Tip: I have supplied you with a list of low calorie breads to purchase and one to make. The calorie count on the bread I used was 70 calories per slice (for reference).