Klingon recipes. My favorite is the Vegetarian Lasagna (serves 4-8):

Invite a vegetarian over for tea. Politely inquire about his degenerate lifestyle in order to lull him into a false sense of security. When he lowers his guard, beat him to death with a sack of phone books.

Cook vegetarian over medium heat until brown. Remove from heat and stir in pasta sauce, onion, garlic powder, basil, and oregano. Return to low heat to simmer. Cook, drain, and rinse noodles. In a baking dish, layer in noodles, sauce, and cheese. Bake covered with foil at 375 degrees Fahrenheit for 30 minutes or until top layer of cheese is bubbling. Let cool for 10 minutes, then serve and enjoy.

Afterward, discreetly dispose of the vegetarian's belongings and wipe down the house from top to bottom.