Instant Pot® Green Bean Casserole

Step 1
Whisk half-and-half, 1/4 cup broth, cornstarch, Worcestershire sauce, salt, and pepper together in a bowl. Set soup mixture aside.

Step 2
Turn on a multi-functional pressure cooker (such as Instant Pot®) and select Saute function. Add oil, butter, and onions. Cook for 2 minutes. Add mushrooms and 1/4 cup broth; cook 3 minutes more. Turn pot off.

Step 3
Add soup mixture, green beans, 1/2 cup crispy onions, and remaining 1/4 cup broth. Stir to combine. Close and lock the lid, select manual and set timer for 1 minute. Allow 10 minutes for pressure to build.

Step 4
Release pressure using the natural-release method according to manufacturer's instructions, about 5 minutes. Carefully release remaining pressure manually. Remove lid and transfer green bean mixture to a serving dish. Let sit to thicken, about 5 minutes. Top with remaining crispy onions.