I love salads and sandwiches as much as anyone, but I have to have at least some hot meals even in hot weather. I often crank up the electric pressure cooker (aka Instant Pot) in the morning, cook a one-pot meal like chili or taco soup or whatever, refrigerate it, and reheat in individual bowls in the microwave for supper. I also use the slow cooker for a meaty spaghetti sauce. I cook the pasta in the a.m. and refrigerate until serving time at dinner. Both the pressure cooker and the slow cooker help me avoid heating up the kitchen (and me) in the hottest part of day, which can be brutal here in the southern US.