Bacon, cured meats and sausages . Bacon or Italian pancetta are great in pastas, soups like clam chowder, and with hearty greens. For less fat, use Canadian bacon. Cooked sausages like kielbasa or less fatty turkey kielbasa can be used with beans for a quick cassoulet. Herbs and spices.
Most major supermarkets carry at least several fresh herbs.
I use mint, basil, thyme, chives and cilantro and flat-leaf or Italian parsley most often. Grind whole spices like cumin, allspice, dried gingerroot, black pepper, and nutmeg for more intense flavor. The most versatile and important cheese in the world. Amazingly versatile and not as unhealthful as you may think. Always store them in their containers in the refrigerator, but not in the door, which is not cold enough.