Grease baking dishes & skillets with cooking spray. In addition to the cans you can buy at the stores, you can also buy refillable spray canisters at kitchenware shops & fill with your own olive or canola oil.
Use fat-free or reduced-fat dairy products such as milk, buttermilk, yogurt, cottage cheese & other cheeses.
Use egg whites or fat-free egg product (made of egg whites & flavoring) instead of whole eggs.
Reduce the amount of meat in a recipe but keep the portion size the same by upping the amount of beans, rice, veggies, etc.
Reduce the amount of cheese & nuts in recipes. Try sprinkling them on top of a dish rather than mixing them in.
Trim excess fat from meat & poultry.
Use fat-free or reduced-sodium broths.