In a bowl, stir together eggs, breadcrumbs, garlic, salt, pepper, carrot (if using). With hands, mix ground beef into mixture. Form into a loaf shape. Wrap in foil. Set aside.

Place 1 C water in bottom of Instant Pot.

Place trivet (that came with IP) in Instant Pot and pile potatoes on top of trivet. Transfer foil-wrapped meatloaf into Instant Pot, resting on the potatoes.

Cover pot and set to sealing. Using manual button, set timer to 35 minutes.

When timer is finished, use quick release.

Remove meatloaf and set aside. Pour out water and remove trivet, keeping potatoes in the Instant Pot.

Set to saute and begin to mash potatoes. Add butter, cream, salt and pepper and continue to mash and stir until smooth.

If desired, brush meatloaf with BBQ sauce, Steak Sauce or similar before serving.