Rice-A-Roni®: Margarine and butter provide more flavor than oils, but olive oil, vegetable oil, or shortening could certainly be substituted. Coating the pan with cooking spray is also an option, although the texture of the rice may not be quite as fluffy. We do not recommend low fat margarine spreads (less than 56% fat to be precise) because the margarine may burn faster when sautéing and the Rice-A-Roni® will turn out gummy or mushy.
Pasta Roni®: Margarine and butter provide more flavor than oils, but olive oil, vegetable oil, or shortening could certainly be substituted. We do not recommend margarine spreads with less than 56% fat.
For oil preparation, simply halve the amount of butter or margarine with the equivalent of oil. For example, two tablespoons of butter or margarine would equal one tablespoon of oil. However, this may affect the taste and will change the nutritional information slightly.