"We need" and "I want"

Hello everyone,
Next week will be our last week before the summer break. We will have some fun classes on the last day. We will make some food - how we want it. So we need to know the two following phrases:"We need" and "I want"
We will probably make several different food items, including hamburgers and some kind of ice cream dish, like a parfait or sundae.
What kind of hamburger do you like?
What kind of ice cream dish do you like?
Is there anything you don't want or don't need with them?