I haven't done real meal prepping per se, however I do keep lots of options on hand at all times. I have cottage cheese, smoked salmon, canned tuna, cooked chicken, protein pudding, protein shakes, bars, snacks, etc. Yogurt, walnuts, grapes is a favorite breakfast on days I do a big work out. I make a pot of lentils and freeze them in small 2 oz portions to be able to have some easy food. Tasty Bites makes Madras Lentils, really delicious. Recently I mixed canned chicken with Better Than Bouillion roasted turkey gravy, then put it over cauliflower that I had boiled in chicken broth with seasonings. It was really tasty and felt like eating a comfort casserole. That I can also freeze in small containers. I ordered 2 oz containers, and 3 oz containers from amazon, they've been extremely helpful. I measure and portion everything by weight or volume and track everything. A favorite meal right now is tuna mixed with mayo, spread on gluten free wasa crisp bread with a slice of colby cheese and broiled in the oven. That totals 187 calories, 5 grams of carbs, 17 grams of protein and 11 grams of fat. (2 oz tuna, 1/2 tbsp mayo, 2/3 oz colby cheese, 1 Wasa crisp)