Use vegetable oil margarine instead of butter or lard. Look for whipped, lower fat tub margarine. Saute vegetables in oil instead of butter. There are different kinds of olive oil such as extra virgin oil, olive oil and extra light olive oil. Extra virgin olive oil costs more than other kinds of olive oils.
Olive oil is milder in taste and can be used in sauteing and stir-frying.
Extra light olive oil can be used in baking. Finally, if you find the cost of olive oil too high for your pocketbook, choose safflower and peanut oils as the source of monounsaturated fat in your diet.