Tinned fish are protein-packed pantry powerhouses. Keep your cupboard stocked with tuna, anchovies, sardines and mackerel for protein you can turn into a meal at a moments notice. Make fish cakes, salads, casseroles, sauces, and more. See our guide for using 10 Pantry Staples, 100 Ways for more ideas, or do as the Spanish do and simply serve it straight out of the can with an effervescent white wine for happy hour.