i am throwing a bunch of stuff in a casserole dish and putting it into the oven but i don't know what temperature to put it at or for how long.... i have frozen uncooked chicken fritters in a cream of mushroom roasted garlic at the bottom. the bag is not labeled so if i was just cooking that in the oven i'd put it at 350 for about 20 minutes, maybe less. but i have sliced some potatoes pretty thin and mixed that with more cream of mushroom soup, diced tomatoes and canned green beans, drained. so the potatoes throw me off. they are all on top of eachother and i don't know how long it would take them to cook. i usually cook potatoes on the stove. so i have all that stuff in the dish ready to cook... so what do you think??