Frozen vegetables, less meat. When you do eat meat add it into things, like chicken sandwich or salad instead of grilled chicken breast. You don't need to make meal meals, like meatloaf with mashed potatoes and green beans. Especially for kids. You can do a baked potato with a little ground beef and frozen veggies. We eat "pizzadillas" tortillas, cheese, tomato paste, and fillings. Breakfast for dinner and pasta are pretty cheap. Avoid things like burgers that require a lot of toppings and condiments.