My family makes a super simple, super yummy version of chicken divan. Its pretty much a staple in all of our menus. I make it quite often, though I realize I've never posted the recipe. This is one of the first chicken dishes that my then-vegetarian roommate in college tried and liked... and eventually led to her becoming a meat eater. :) I often put it all together and freeze it to bake later. It also freezes and thaws very well if you want to freeze after cooking, too. You can make this to suit your tastes, its very versatile. I generally use broccoli and cauliflower as my veggies, but I've made it with green beans, corn, and carrots, at different times, too. Broccoli and cauliflower are my favorites, but I also like it with green beans and then I use a cream of mushroom soup and it tastes like a green bean casserole on the bottom.
frozen veggies (broccoli and cauliflower are my favorites to use, but you can use anything you like)
cream of whatever soup (use your favorite... cream of celery is my favorite to use with this)
boneless skinless chicken breasts
bread or cracker crumbs (optional)
Adjust the quantities depending on the size of your pan. If I don't want many leftovers, I generally use a 9x9 square glass baking dish. For that, I use the equivalent to one of the 16 oz bags of frozen veggies, 1 can of soup, maybe 1/2-1 cup of cheese, and three or four chicken breasts, depending on their size.
Pour your frozen veggies into the bottom of your pan. Open up your soup and spread it over top of the veggies. Sprinkle cheese on top of the soup. Place chicken breasts on top of the cheese. You can sprinkle with bread or cracker crumbs if you want... I don't generally do that, though. Cover with aluminum foil. Then just bake it in a 350 degree oven. You can bake it all frozen (even the chicken), but that takes about an hour and a half, probably. If the chicken is thawed, then I think I probably bake it for about 40-45 minutes, maybe. I just keep an eye on it till it looks done. You'll want to remove the foil during the last 15-20 minutes or so.