Combine ingredients in small saucepan. ... heat until bubbling. Toast bread or buns. If serving on toast, serve open faced. If serving on buns, make sandwiches.
Drain tuna and flake. In a small ... and mix well. Toast 8 slices of bread. Spread ... Place sliced cheese on another four slices of toast. ... cheese with sour cream and spread on the other ... arrange on a platter.