... Add the roast beef and pepperoncini to one side. 1. 10:30am | 9:30c. The Pioneer Woman. 12pm | 11c. Melt 2 tablespoons of the butter and the vegetable oil in a heavy pot over high heat. 11:30am | 10:30c. The Pioneer Woman. The Pioneer Woman. https://tastykitchen.com/recipes/main-courses/beef-pepperoncini Preparation. The Pioneer Woman. 11am | 10c. Sprinkle the chuck roast with the salt and pepper.