Super Easy, but really tasty ...
Marinate overight if possible in bottled Italian Salad dressing and either bake in the oven (350 for about an hour) or cook in the crockpot. I usually just put mine in my crockpot insert or in a large ceramic roasting dish and pour on the dressing, then I cover and put in the frig overnight and take it out and put in the crockpot base in the morning ... or in the oven when I get home from work.
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And here's one I made up one night based on what we had on hand ... (though it's probably similar to something on a Campbells soup can

)
Place the chicken breasts in a large roasting pan (I removed the skin) mix one can of cream of mushroom or cream of chicken soup with one can of sliced mushrooms and about half a bag of frozen broccoli flowerettes. Pour mixture over chicken and bake till chicken is done and sauce is bubbly. Then stir in about 1 cup of shredded cheese (I used the Sargento Bistro Asagio w/ roasted Garlic variety) and return to oven till cheese melts.
Serve with rice or noodles.
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Crockpot chicken Teriyaki
Remove skin and place chicken in crock pot ... add one small bottle teriyaki sauce, one half cup brown sugar, one can pineapple with juice ... cook till done and serve with rice. Discard pineapple because it will taste nasty ... if you want to serve this with some pineapple, I'd suggest saving some of the pieces and not cooking them in the crockpot with the chicken, instead warm them in a samll skillet with a little of the sauce just before serving.
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BBQ Chicken
Cook chicken in crockpot or oven with bottle BBQ sauce ... *OR* 1 cup ketchup mixed with 1.5 cups Coca-Cola. (Sounds weird, but it makes a good BBQ sauce)
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3 Ingredient Italian Chicken
Place Chicken in large container and add one cut up 'chunk' style pepperoni ... about 1/4 lb is plenty. Peel a small bag of lemons (about 6-8 depending on size) and cut into chunks ... put the lemon pieces and juice into the dish with the chicken and pepperoni. Cover and refrigerate overnight.
When ready to cook ... put the chicken, pepperoni, lemon and juice into a skillet and cook till brown. (The pepperoni will release enough oil, you don't need to add any. And the lemon will cook away to almost nothing, but a little thick 'sauce'.) Turn the heat to low and allow to continue cooking till chicken is completely done or once browned, you can place it in a roasting dish and cook in the oven.
This is fairly spicy because of the pepperoni, but my family *LOVES* it!