Try joining a recipe site. I use Allrecipes, but there is Epicurious, Cooks.com, and I don't know how many others. Kaboose is oriented toward kids and features recipes for kids. Most of these sites have an area where you can interact with other parents and get suggestions from them.
You can make salad ahead for several days; have separate bowls of what to add to make it different, if you need to; we just eat the same salad for several days. Lasagna is easily made ahead, but would need to be thawed in the fridge unless you want to eat very late. Meatballs don't take long to cook from frozen. Look for things that can be easily thrown in the oven to bake so you have time to relax. Chicken and rice in the oven. Shake and Bake (you can use bread crumbs) for pork chops, chicken, etc. Have pre-cut cheese, celery, carrots, etc for the kids to snack on. Apples are easily cut with an apple cutter that slices an apple into wedges. A peanut butter dip can be made ahead to serve with them. Soups can be made ahead, frozen, placed in the fridge the day you plan to use it and heated when you get home--have a special bread or cracker to go with different ones so it feels like a full meal. The key to the frozen stuff is to thaw it so you can heat it quickly. Tuna salad, chicken salad, etc, can be a quick meal in the summertime. Toasted cheese (toast, cheese, melt in microwave) has less butter and is an easy side sandwich. Grilled or toasted peanut butter makes a PB sandwicch a little more special. There are other nut butters if there are allergies to peanuts.
It takes planning on your days off to do this successfully. I'd suggest a menu-planning night where you see what's on sale and you and your husband and your kids, if they are old enough, help you plan for the week or even for two weeks. They may like the idea of home-made pizzas from English Muffins (chose own toppings) or homemade tacos (again, everything can be made ahead-just need to heat the filling and assemble). Since your husband is fixing meals, he needs a voice in what is made. If your children get involved, you can teach them about good nutrition, planning, and they can help with preparation in time.