Beef Tenderloin without currant

2 tablespoons unsalted butter 1 tablespoon olive oil 1 1/2 cups diced potatoes , rinsed (1/2 inch) 1 cup baby carrots 1 cup small white button mushrooms 1/3[...]

1 x 3 1/2 lb trimmed beef tenderloin 1 1/2 tsp Salt , divided 1 tsp Pepper , divided 2 Tbsp. Canola oil 3 Tbsp. Butter or possibly margarine 2 lrg Yellow[...]