I buy romaine hearts instead of bagged salads. They last so much longer, and I just wash and cut them myself when I need lettuce for salad. Can you just buy smaller amounts of fresh items, such as produce, and pick up more as needed? If not, maybe rely more on frozen produce than fresh? Egg dishes (crustless quiche, frittatas, etc), souls and stews are good ways to use up veggies that are starting to turn.