What do people normally put on matzah bread?

Matza goes great with many things. My personal favorites are Matza with cream cheese, cream cheese and jellie, and Matza with cheese cooked onto it. Be aware, however, that on Passover some don't put spreads on their matza - called gebrukts, because there might be some flour that didn't get mixed with water, and the spread will make it become chametz.