I sometime eat pizza as a snack. What is the beracha?
The berachah on one slice of pizza, which is eaten as a snack, can depend on how the pizza is made.
If baked with fruit juice, milk, and so on, its beracha will be mezonos.
If baked with water alone, some write that the beracha is ha-motzi, whereas others write that it remains mezonos.
See also sources. Best wishes.
The basic question, for pizza baked without fruit juice etc., is whether a slice of pizza is considered a “snack food” whose berachah is mezonos (reported in the name of Rav Moshe Feinstein) or a “meal food.”
Assuming that it is a snack food, It is permitted to eat the amount of pizza that does not generally constitute a full meal. Generally, the assumption is that it is permitted to eat one triangle, but not two (this is based on the ruling of the Vilna Gaon and others, and not like the more stringent opinion, which forbids eating any more than four beitzim — an amount that might be less than one triangle; see Mishnah Berurah).
In addition, note that the “one triangle” should not be eaten with accompanying side-dishes, because these will also join with the pizza in creating an obligation to wash, recite ha-motzi, and bench. A further point to note is that if a person becomes “full” by eating one triangle alone, this will also obligated him to wash and bench.