Hi Stacey,
Here's a recipe I have, but haven't tried, sounds like it would do the trick for those allergic to milk.

CLUB SODA BELGIAN WAFFLES

2 c. Biscuit mix (with no milk products or whey as ingredients)
1 egg
3 Tbsp. oil
1 1/3 cup club soda

Mix well, make sure batter is thick; add additional mix if
necessary. Pour into Belgian waffler. This batter can't be stored so use all of it at the time it's mixed and freeze left over waffles.