Preheat oven to 350 degrees
Prepare stuffing according to package directions.
While the water is coming to a boil for the stuffing, remove stems from mushrooms and set aside.
Place mushroom caps, open side up, in one, or two, oven proof baking dishes
Chop reserved mushroom stems and set a side.
Chop the artificial crab.
Mix mushroom stem pieces, artificial crab, cream cheese, garlic powder, and black pepper together.
Mix the prepared stuffing with the cream cheese mixture.
Once stuffing and other ingredients are well combined, spoon into mushroom caps, piling it up, and rounding it on the top.
Melt 1/4 cup butter in a pan and add the minced fresh garlic
Saute garlic in butter for a few minutes until it softens and the garlic flavor has permeated the butter, but don't allow the garlic to brown.
Using a silicone brush, or a teaspoon, divide the garlic butter, and the garlic pieces, evenly on top of the mushrooms.
Bake for 10 - 15 minutes at 350 degrees, or until the stuffing is has begun to lightly brown.