Garlic Lovers Roast Beef

Bahan-bahan (10 porsi)

• 2 -3 lb roast or eye round (all fat trimmed off)
• 3 -4 cloves garlic (cut into thin slivers)
• olive oil spray
• kosher salt (to taste)
• fresh cracked pepper (to taste)
• 2 tsp dried chopped rosemary
• meat thermometer