I would try 1 or 2 teaspoons of Dijon Mustard with a touch of Soy sauce. I think that if you're going to use it specifically with meat, Anchovies are out! Unless you are going to use it on a salad which will be served prior to eating meat. However, check with your Rav since I am only the KITCHEN er REBBE. Let me know how it works out.
[OU Note: Anchovies are a species of fish and therefore cannot be eaten with meat.]