Stir in flour, stirring constantly until a thick, golden roux is formed, about 2-3 minutes. Stirring constantly, stir in turkey broth and milk. Simmer for 4-5 minutes, stirring occasionally, or until gravy is thickened. Stir in Stubb’s Chicken Spice Rub, thyme, sage, turkey and mixed vegetables. Simmer, stirring occasionally, for 5-6 minutes.