Beef Pot Roast (Pot, Oven or Slow Cooker)

boneless beef roast, 2 1/2-3 lb, cut to fit pot or crockpot (chuck, shoulder or round)

oil

salt and pepper,

Worcestershire sauce

instant beef bouillon

dried basil, crushed

new potatoes or 2 medium sweet potatoes

carrots or 6 medium parsnips, peeled, cut into 2-inch pieces

onions, cut into wedges

celery ribs, bias-cut in 1-inch pieces

flour