In a large skillet, melt butter.
Add oil, garlic powder, salt, pepper and juice from lemon. Heat thoroughly.
Add mushrooms and continue cooking, stirring occasionally until mushrooms are tender, approximately 10-12 minutes.
Garnish with parsley, if desired
Place the Mummy Dogs on a greased cookie sheet and bake at 350 for 10-15 minutes.
Add dots of mustard for the eyes!
If cooked much longer, it gets a bit well done.