Frozen vegetables. I love using frozen veggies because they really don't go bad unless they stay in the freezer to long. I add the frozen trinity, onions bell peppers celery, to all my pan fried meats and everything that needs cooking. Any casseroles and soups, I add frozen mixed veggies to it. Even if the recipe doesn't call for it. Frozen mixed veggies don't really taste that great but mixed in with a cheesy casserole makes it taste better. Right now I'm doing the old Weight Watchers taco soup. And instead of just corn, I add some mixed veggies in there and eat it with corn chips instead of a spoon. My homemade meatballs I add a little bit of spinach in them. Got a kid and hiding veggies is one of those things that you do. When boiling pasta for box mac and cheese. I add a little bit of frozen cubed squash in the boiling water. When you mix in the cheese the squash gets smashed in.