Preheat oven to 425 degrees F.
Cook and stir beef, celery and onion in 10-inch skillet until beef is brown; drain.
Mix baking mix and water until soft dough forms. Roll or pat dough into a 12-inch circle on an ungreased cookie sheet or baking stone. Pinch edge of circle forming a 1/2-inch rim. Mix ground beef and remaining ingredients. Spread over dough. Bake until crust is golden brown - 20 to 25 minutes.