For your crock pot, hit the salad dressing aisle. Anything with a vinaigrette will make a wonderful addition to chicken, or check out the barbecue-style marinades in the condiment aisle - just toss the chicken (still frozen, even) in the crock pot, add about a half bottle of your "sauce" (we've found a pear vinaigrette we enjoy), and put it on low all day. Do you have a microwave steamer? You can steam some veggies in about 5 minutes in the microwave, or just use the veggies in the steamer bags in the frozen section.
I know you mentioned getting away from boxes, but boxed jambalaya mix works really well in the crock pot. Follow the directions for adding water, but don't follow the cooking directions, just toss it in the crock pot on low all day. Add frozen cocktail shrimp, sausage, or shredded chicken, and you are good to go.
As for chicken, I buy large quantities and boil it at the beginning of the week, shred it, and put it in freezer baggies with a little of the broth, a little more than a handful per bag. I use this frozen chicken for chicken tacos (warm in a saucepan with a packet of taco seasoning mix), jambalaya, chicken/rice casserole (add one can of cream-of-something soup, 3/4 cup rice, 1/4 cup water, black pepper, bake 45 minutes at 350, add cheese), chicken salad, barbecue chicken sandwiches (toss in crock pot w/ bbq sauce)...anything you might want to do with shredded chicken.
Finding new recipes the family likes is always very rewarding for me. Happy exploring!