Cheeseburger Macaroni � Pressure Cooker

1 Tablespoon vegetable oil
1 Pound lean ground beef
1 Small yellow onion, diced
1/2 Teaspoon salt
1/4 Teaspoon pepper
1/2 Teaspoon thyme
1/4 Cup ketchup
3 Cups macaroni
3 Cups beef broth
12 Ounces Kraft Velveeta Cheese

With the cooker lid off, heat oil on HIGH or "brown," until sizzling. Place the ground beef in the cooker, and cook until browned.
Add remaining ingredients, except for the cheese, to the cooker.
Securely lock the pressure cooker lid and set for 6 minutes on HIGH.
Perform a quick release to release the cooker pressure.
Add the processed cheese, stirring until melted and creamy. Let sit 5 minutes to thicken before serving.