Most casserole recipes work best if you freeze them before cooking. To be safe, you should use frozen casseroles within two to four weeks of preparation. You do not have to stick to casseroles in your Cooking Ahead plan. You can prepare side dishes and entrees that you like. Be careful, however, with the seasoning of foods you will freeze.
Salt becomes less prominent, but garlic and onion become stronger.
Flavors can do strange things when freezing, so you may need to make adjustments as you work with your favorite recipes. Freezing helpful ingredients. After browning and draining beef, add spices and tomato products. Bring to a boil and then simmer for 20 minutes. Spray a 9x13 pan with vegetable spray.