Quick, Low-Cal Vegetarian Meals (Made With a Little Help)

Prepackaged foods you'll need:

— Two tubes of polenta

— Can of black beans

— Box of chopped tomatoes

— Frozen corn

This vegetarian recipe also happens to be gluten free and takes fewer than 30 minutes to whip up. Just slice and pan-fry the polenta and cook the other ingredients together in a saucepan. Top with the bean and tomato mixture, and you've got one quick, satisfying vegan meal for under 300 calories.