Heat a little olive oil in your Dutch oven on the stove. Salt & pepper your boneless chuck roast. A 3 pounder should feed 4 to 6 people. I like to buy 3lb roasts and cut them in two. I salt them and freeze them, pulling out a 1 and 1/2 pound roast whenever I want to cook a pot roast for just the two of us. Make sure the meat is thawed before you start. Once the oil gets hot, brown the chuck roast on all sides in the pan.
I roast the vegetables separately. About an hour before the roast is finished, I put in the vegetables. I use potatoes and prepackaged baby carrots, cutting the potatoes to be roughly the same size as the carrots. I toss them in olive oil, salt and pepper.
I put parchment paper down on a cookie sheet and stick them in the oven to roast while the meat finished.
Now add the sauce
1 3lb boneless chuck roast
1 cup chicken broth
1 cup beef or veal broth
1/4 cup red wine
2 cloves garlic minced
2 stalks fresh thyme minced
1/4 mire poix mix or 1/2 carrot, small onion & celery stalk finely diced
Salt & Pepper