***edited: just remembered vegetable quiche cups! They're in the SouthBeach Diet book, super simple to make, and go great with salsa (for my husband, who doesn't diet, a little cheese in the mix before cooking makes this greatness, and you can freeze them). ***
I did this for myself when pregnant with my 2nd child, and it helped SO MUCH! Great idea for your friend. I stacked my deep freezer with a stouffers lasagna (easy, good), but then for cooking I made a chicken/sausage gumbo, a great chili, chicken tortilla soup, a beef taco soup, and did a pulled pork recipe (back of the McCormicks season pack) for BBQ sandwiches in the crockpot. I made my spaghetti sauce and meatballs and froze them (no noodles), a little thing of prepared taco meat to have later as tacos, burritos, or salad. (also froze the wholly guacamole and stored it next to the taco meat). For veggies to cook with later, I diced up onions, bell peppers, garlic, jalepenos, the stuff I always cook meats with and had them in individual sandwich bags, which I stored in a large freezer bag labled "chopped veggies". For the soups, stews, and even BBQ pulled pork: put them in freezer bags and lay FLAT (best if on a big box like the stouffer's lasagna so it's not all ridges everywhere), it'll freeze like that, and then you can stand them up and put them together like files. I made a king ranch casserole because I make a good one and we all love it, but turns out we did NOT like it after it was frozen. The tortilla chips had a weird consistency to them. Too bad. I didn't do a beef stew because someone said potatoes freeze weird too. I made a great chicken soup that I could bulk up with rice or egg noodles with after thawing, and that turned out fine. I grilled a few things (balsamic chicken, etc) and had those in individual sandwich bags (like 5 of them, inside a large freezer bag--good for putting into a salad or serving with rice and veg, whatever. Calzones were good---I used refrigerated pizza dough to make those, stuffed with whatever you want. Muffins is a good idea; I didn't think about that at the time. And have a couple desserts too, just in case there's a craving or guests over.