I would pick up a cheap paring knife and plastic cutting board, a cheap pot, a cheap cookie tray (disposable is fine) and a roll of aluminum foil (try the dollar store for all). It will cost less than a single meal out, and you'll more than make up the savings from eating out, or buying pre-chopped vegetables, particularly as you don't have a microwave. I'm assuming you have some dishes and cutlery to eat with.
With this you can do -
Salads: garden salad, greek salad, tuna salad, egg salad, pasta salad, chicken salad (poach the chicken first).
Pasta: pasta with jarred tomato sauce, or simply tossed with a can of tomatoes. Pasta with vegetables and cheese. Pasta with jarred pesto. Kraft Dinner. Noodles and sauce/rice with sauce.
Soups and Stews: Any sort of canned soup, homemade vegetable soup, chicken noodle soup, vegetable stew, chili, beef stew, greek rice and egg soup, chinese eggdrop soup.
Meat: Poached chicken, spaghetti sauce with meat. Use the foil to line a disposable baking tray and you can bake or grill chicken/fish/pork chops/steak, or wrap in a foil packet with some vegetables and do a moister bake. Bake your meat, then slice it up and make wraps or tortillas, or poach chicken and stuff it in a pita with some yoghurt and veggies.
Sandwiches, wraps and pitas of all sorts.
Boiled/steamed vegetables, roast vegetables.
Rice - with a cheap pot, I'd do rice with the boiling method, and cook it the same way you do pasta.
For seasonings, I'd recommend an Italian herb mix, a curry powder, granulated garlic, cumin and chili powder for maximum versatility and convenience, plus salt. For other seasonings - a bottle of lemon juice, a bottle of wine vinegar, a bottle of oil, a bottle of soy sauce, a jar of mustard, grated parmesan, butter, some hot pepper sauce will give you lots to work with.
The cheap pot will be okay for boiling, and stewing if you watch it carefully. It won't work well for any sort of sauteeing or frying.