My personal freezer tips:
1. Potatoes disintegrate when frozen. So if you usually put them in your stew, I'd leave them out and instead serve the stew over freshly cooked potatoes.
2. I have found that some sauces thickened with flour separate when thawed. You might try freezing then thawing some of your chicken and dumplings before you go to make sure it will come out ok. (That said, I've frozen beef stew thickened with flour and its been fine.) Supposedly, sauces thickened with cornstarch do not separate with freezing.
3. I have frozen and thawed lasagna and it came out perfect. But even thawed lasagna takes a long time to cook... I expect the beef BBQ, chili, and stuffing would be perfectly fine frozen.
4. I personally find that chicken in the crockpot comes out too dry for my tastes. I have come across a chicken and stuffing crockpot recipe on the internet which I made once and it was pretty good. It was something along the lines of cooked shredded chicken (you could cook and freeze at home) mixed with canned condensed chicken or mushroom soup, and vegetables. The mixture was layered in the crockpot with prepared stuffing, with the top and final layer stuffing. Cover and cook about 4 hrs on low or 8 on high. If you are interested but can't find the exact recipe, I probably have is somewhere and can post.
5. Believe it or not, cooked quesadillas freeze perfectly and only take 10-15 minutes in an oven to reheat (once thawed). I will mix a bag of preshredded cheese with chopped tomatoes, cilantro, pickled jalepenos, and onion and then scoop the filling out to tortillas on a griddle. Fold over and cook like a grilled cheese. Then cook on wire racks, wrap in foil, and freeze.
6. Rice and other grains freeze perfectly and small frozen bags (enough rice for 2) reheat in about 2 minutes in the microwave. If you'd want some rice or pilaf, cook and freeze that before you go.
Beatnik