Preheat oven to 375F. Cook the frozen spinach according to package directions in the Covered Micro-Cooker. Add cream cheese to the hot spinach and mix well. Using the Deluxe Cheese Grater, grate all of the additional cheeses and add to the spinach mixture. Add mayonnaise and pressed garlic to the mixture. Using the Food Chopper, chop the onion and cooked chicken breast into small pieces and add to other ingredients.
Arrange crescent triangles in a circle on 15” Baking Stone, with bases overlapping in center and points to outside (there should be a 5-inch diameter circle in center). Using medium Stainless Steel Scoop, spoon mixture over wide ends of crescent rolls. Fold points of triangles over filling and tuck under base at center (filling will not be completely covered). Bake 20-25 minutes or until golden brown