Simple Beef Pot Roast

Heat vegetable oil into a large oven-safe pot over medium-high heat. Season chuck roast with salt and black pepper.

Cook in hot oil until brown on both sides; transfer to a plate.

Add carrots, celery, and onion into the pot. Cook and stir until vegetables start to release their juices, scraping any brown flavor bits off the bottom of the pot, about 3 minutes.

Add butter, and cook until onions are translucent, about 5 minutes.

Sprinkle in rosemary; return roast to the pot and cover.

Roast in the preheated oven until the chuck roast is tender, about 2 1/2 to 3 hours.

Season vegetables with additional salt and black pepper, if desired.