What temp to cook a frozen sirloin tip roast?

To cook a frozen sirloin tip roast, you should set your oven to 325°F (163°C). It’s important to allow extra cooking time since it's starting from frozen; typically, you should plan for approximately 50% longer cooking time than you would for a thawed roast. Use a meat thermometer to ensure the internal temperature reaches at least 145°F (63°C) for safe consumption. Let the roast rest for about 15-20 minutes before slicing for optimal juiciness.