How to Make Homemade Deli Roast Beef23lb Round RoastKosher Salt 1 TBSPBlack Pepper 2 TSPGarlic Powder 1 TSPOnion Powder 1 TSPOptional Ingredients can be herbs, like rosemary and thyme. Add those AFTER searing the roast.Cook in the oven at 200F to an internal temp of 135F.