food ideas for the hot summer

As I was about to have a nervous breakdown cooking dinner tonight, i thought, THATS IT. Im done cooking for the summer, standing over the stove, miserable, just sooo hot.
Besides salads and sandwhiches, does anyone have any ideas of things you can put together in the morning, put it in the fridge, and then just throw it in the oven right before dinner. I always have fresh vegetables cooked in the fridge, but the husband wants some meat. Ive never really done much with casseroles, but Im guessing thats what Im after. You all make such good sounding food, I was wondering what you have in your hip pocket for the summer??
Thanks