Easy Crock Pot Roast - My 3 year old son loved it

3 - 3 1/2 lbs chuck roast
1/2 tsp salt
1/2 tsp seasoned salt
1/4 tsp pepper
1/4 tps paprika
1 onion cut in wedges
3 carrots cut in slices
4 potatoes cut in pieces
1 celery stalk chopped
1 cup beef broth
Rub meat with spices, put vegetables on bottom of slow cooker, pour in broth, place meat on top of vegetables. Cover and cook on low 8-9 hours. Remove meat and vegetable from crockpot. To thicken juices, blend 3 TBSP of cornstarch with 1/4 cup of water, add to broth and cook on high until thickened.