Mini pizzas. Buy the can of biscuits you can peel. Peel into thin slices (like 1/4") spread with sauce, cheese, and little pepperonis cut into quarters so they'll fit. Bake in the oven, 375, until melted.
Get large bagels, halve them. Pizza sauce or spaghetti sauce works just as well> Shredded Cheese Toppings
Microwave for like 15 seconds each....enough to melt the cheese :).
Tuna Noodle Cassarole
2 cans tuna 1can corn 1can peas 1 can cream of mushroom soup 1 can cream of celery soup 1 box pasta (any shape)
Cook pasta until done and drain. Dump tuna, cream soups and vegetables into the pot......mix. You will want to use a larger pot for this as it creates a lot of food (good for leftovers). It sounds like brains (my DH says)