Add the oil to a large cast iron skillet set over medium heat. Add the onions to the hot oil and sauté, stirring often, just until tender- about 2 minutes.
1 tbsp canola oil, 1 white onion
Add the diced beef to the skillet and sauté, stirring often, until it's cooked through- about 8 minutes.
1 lb beef stew meat
Add the remaining ingredients and seasonings, EXCEPT the canned biscuits, and stir to evenly combine. Bring the mixture to a nice simmer, stirring occasionally.
1 12 oz can roast beef & gravy, 8 oz sliced mushrooms, 1 15 oz can diced potatoes, 2 15 oz cans peas and carrots, 1 bay leaf, 1/2 tsp dried thyme, dash Worcestershire sauce, seasoned salt, freshly cracked black pepper, 1 18 oz jar savory beef gravy
Open the canned biscuits and separate them, then top the skillet with them.
2 7.5 oz cans small size refrigerated buttermilk biscuits
Carefully transfer the hot skillet to the oven, and bake at 425° for 15 minutes.
Carefully remove the hot skillet from the oven and let the pot pie rest for 5 minutes.
Serve warm and enjoy!