Answer:

mushrooms

Answer	Crossword Clue
MUSHROOMS	Top it off
MUSHROOMS	They're stuffed
MUSHROOMS	Fungi for gastronomes.

MUSHROOMS	Phenomena over Yucca Flat.
MUSHROOMS	Popular topping
MUSHROOMS	Stuffed appetizers
MUSHROOMS	Pizza topping
MUSHROOMS	Champignons
MUSHROOMS	Antipasto ingredient

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.