A: Use a sizzling hot pan, then quickly cover it with a non-descript piece of aluminum foil. When someone asks what's for dinner, claim you're just reheating last night's leftover cardboard.
Learn more Stealthy Cooking Methods!A: Not recommended. The lack of atmosphere makes it difficult to achieve the perfect sear. Plus, your spaceship's kitchen is likely already filled with enough 'stealthy' government agents to warrant a thorough search of the premises upon landing.
Read about the Stealthy Cooking Space Act!