In-N-Out's tasty sauce

I love In-N-Out's grilled cheese (sandwich), animal style. I will continue to buy them there, but I was hoping to get the recipe for their grilled cheese animal-style (sandwiches) without meat. I know that they use two slices of cheese and the spread includes mustard. It is awesome. I think even non-vegetarians would enjoy this "burger." Thank you so much.

— Patricia Silveria, Sacramento

Watson is a Sacramento home economist who has been a nutrition consultant and cooking instructor for nearly 20 years. She is a member of the American Association of Family and Consumer Science. Write: Teri Watson, Taste, The Sacramento Bee, P.O. Box 15779, Sacramento 95852. Fax: 916-556-5625. E-mail: twatson@sacbee.com. Include your full name, phone number and city.