Additional flavor or topping ideas:
Add 1/2-1 cup of pumpkin and 1 tsp of cinnamon or pumpkin pie spice for pumpkin waffles.
Add 1/2-1 cup of berries.
Add 1/2 cup of naturally sweetened chocolate chips for chocolate chip waffles. (The pumpkin plus chocolate chip addition is a fall favorite!)
Add 2 tsp of cinnamon for cinnamon waffles.
Add 1/4 of cocoa powder for chocolate waffles.
Add 1/2 cup of ripe, mashed banana for banana waffles. (This is yummy combined with cocoa powder.)