Most Helpful Guy
Fortunately you picked a time when there are so many foods that cater to the vegan / veggie lifestyle. There's probably an entire freezer section for vegan / vegetarian foods in your grocery store. Heck, you can get vegan bacon, vegan burgers, vegan steak tips, vegan chicken nuggets. Vegan cheese. Vegan pizza... The list goes on!
Go shopping and see what you can find!
Most Helpful Girl
Not quite sure what you're asking. There's protein, carbs, and fat. If you go vegetarian, you're mainly giving up protein rather than carbs, but you can get protein from dairy and eggs to make up for it. Cheese in particular has more fat/cholesterol ounce for ounce than most meat. If you want carbs, go with complex carbs like in whole grain bread.