Pot Roast

Ingredients

• 1/4 cup oil
• 1 (4-lb.) boneless chuck roast
• 1 cup onion, chopped
• 1 cup celery (sliced in rounds)
• 2 cloves garlic, minced
• 3 cups beef broth (canned works well)
• 1/4 cup ketchup
• 1 teaspoon salt
• 1/2 teaspoon pepper
• 1/2 teaspoon dried thyme leaves
• 5 medium potatoes (peeled and quartered)
• 4 carrots (peeled and cut in 2-inch pieces)
• 1/2 pound green beans
• 1/3 cup cornstarch
• 1/4 cup water