Recently I tossed together these very easy calzones and they were a big hit with the kids. Some of you asked me to share the recipe. I just tossed this together, so I'm sorry I don't have exact amounts for you.
Place some fresh broccoli (1 1/2 cups or so) in a microwave steamer and steam for 3 minutes (or you could use thawed frozen).
Meanwhile, heat 1 tbsp. olive oil in a skillet. Add a clove of chopped garlic. Saute until softened, add approx. 1/2 cup chopped mushrooms. Once those start to soften add spinach (couple of hand fulls).
Stir in steamed, drained broccoli, 3/4 cup of marinara sauce, and 1/2 cup shredded cheddar cheese.
Take 1 can of biscuits. Roll the biscuits out into 6 inch circles. Place filling in the center and then fold over.
Bake according to directions on the biscuit can.
Obviously, since I just threw this together haphazardly, it could be a very flexible recipe. I'm sure you could try all different sorts of veggies in the filling - whatever you have on hand would work fine.