dee dee's chicken pot pie

Ingredients For dee dee's chicken pot pie

• 1 lb

  chicken breasts, boneless and skinless (you can use dark meat if desired) cut into bite size pieces
• 1/4 c

  butter
• salt and pepper
• 3 Tbsp

  olive oil, extra virgin (can use butter or vegetable oil)
• 1/2 lg

  onion, chopped
• 1 stalk

  celery, sliced
• 2 md

  potatoes, peeled and cubed
• 3

  carrots, sliced
• 1/2 c

  corn kernels, fresh (can use frozen)
• 1/2 c

  green peas, frozen
• 1/2 tsp

  thyme, dried
• 1/4 c

  all purpose flour
• 1 1/2 to 2 c

  milk
• 1/2 c

  heavy cream
• 2

  chicken bouillon cubes, crushed (or 2 to 3 tsp granulated)
• 4 oz

  pasteurized cheese (like velveeta) optional
• 1 sheet

  pastry dough, rolled out to 9 x 9 square