Braised Beef Pot Roast with Red Wine and Mushrooms

olive oil

boneless beef roast (I used an arm roast)

salt and pepper

large carrots, peeled and diced into 1-1.5'' pieces

large yellow onion, peeled and diced

mushrooms, sliced

garlic, peeled

small shallot, peeled and diced

red wine

beef broth

thyme, dried

sprig rosemary, dried or fresh

butter