Your question is a little confusing because I'm allowed to have the foods prepared some ways but not others. For example fried chicken would need to be battered and maybe breaded. Can I have any amount of flour without flour being one of my ingredients? What about bread crumbs? If I can have bread crumbs, do I automatically get bread?
Assuming that the question is about choosing five key ingredients and discludes dessert, (with sugar, flour, cream, and eggs you can make a ton of amazing stuff) here is my list.
Chicken
Steak (which could be ground into ground beef)
Potatoes
Cheese
Lobster
With that and spices - I'd only be really really really sad... not suicidal.