I feel your pain! LOL
I have 2 teenage boys and a husband who eat.,...and eat.... and eat! We also currently have my 2 teenage daughters with us and we have a 9 year old. We also may have at anytime at least 2 more teen age boys here for dinner. Needless to say, I've learned to cook for many and keep to my budget for 5 people.
Here are some things I do and are fairly inexpensive.
1. Taco Mac:
1-2 pounds of cooked ground beef
1 pack of taco seasoning
Sour Cream
Salsa
Family size box of Macaroni & Cheese (I use Kraft)
Cook Mac & Cheese as directed. But, when I do the cheese, I put my butter and milk in the pan and let it melt and get hot, then I add my cheese powder and mix till smooth. Then I add about 6 slices of American cheese to it and let that melt, then add my macaroni.
Add cooked ground beef, taco seasoning and mix well.
Serve with Sour Cream and Salsa.
(If your little one doesn't like taco flavoring, remove some mac and cheese prior to mixing the rest together...I do this for my 9 year old and she just has mac & cheese for dinner. Or I add some meat to it and add my taco seasoning to the rest of the pan afterward.)
2. "Stuff in a pan" (My entire family loves this...and we use it for when all of my brothers and sisters get together with the kids for camp outs)
1 pound of breakfast sausage (I love the maple flavored myself)
6-8 potatoes, sliced
1 onion, chopped
8-12 eggs, scrambled
1-2 cups of shredded cheese
Cook your sausage (I use bulk type)
Fry potatoes and onions together in some low fat butter or olive oil. Once they are cooked, add the sausage. Then pour the eggs over top of all of it and cook till done. You can add some of the shredded cheese and melt it in too.
You can serve this with toast. I have put salsa and sour cream on it, I've served it in tortilla wraps, I've also added tomatoes and red bell peppers to it. You can fix it up with whatever you have on hand.
3. Chicken and Rice:
Family sized can of Cream of Mushroom soup
8 oz. Sour Cream
3-4 strips of bacon, chopped and cooked
3-4 T of Mrs. Dash seasoning
Blend this all together in a sauce pan and heat it up.
Serve over chicken or pork chops and sides of rice.... or you can cut up your meat and mix it with the rice and put the sauce mix with it.
My 9 year old loves this stuff.
Another thing I make is pancakes for dinner, serve with some sausage or bacon.... pancakes go a long way!
I'll try to come up with some more ideas for you.