I keep a lot on hand. I buy a lot of dry foods in bulk then store everything in big plastic tubs. I figure it can also double as my emergency food supplies in the event of a disaster.
Fruit and Nuts:
almonds, walnuts, apples, bananas, medjool dates, seasonal fruits (I freeze a lot of the fruit so I can use it later in smoothies)
red beans, black beans, lentils, split peas, textured vegetable protein
Grains & flours
Couscous, brown rice, quinoa, amaranth, barley, white flour, whole wheat flour, bread crumbs, oat bran, oatmeal, corn meal, whole wheat spaghetti, popcorn, garbanzo bean flour (for making hummus)
Paprika, cayenne, crushed red pepper, garlic powder, onion powder, chili powder, chipolte, cumin, black pepper, oregano, basil, cinnamon, unsweetened cocoa powder
Extra virgin olive oil, canola oil, Earth Balance
Unsweetened soy milk, tofu, maple syrup, vanilla extract, yeast, baking powder, Ener-G egg replacer, natural peanut butter, canned unsalted tomato sauce, onions, garlic
I would say the most frequently used items are the garlic, onions, olive oil and crushed red peppers. They end up in a lot meals.
Vegan Cookbooks Illustrated