Cheesy Mixed and Mashed Potatoes with Rutabaga

Name: Cheesy Mixed and Mashed Potatoes with Rutabaga
Ingredients: 3 lbs (1.360 kg) yukon gold potatoes, peeled and halved; 1 rutabaga, peeled and shredded; 2 lg sprigs thyme, leaves retained; 1 large sprig spicy oregano, leaves retained; 2 sprigs rosemary, leaves retained; 4-6 large sage leaves; 4 oz (113.4 g) asiago cheese, finely grated; 5-6 tbs (75-90 g) butter, softened; 6 oz (165 ml) cup half and half, warmed; 1½ tsp (7.4 g) white pepper, finely ground; 1 head garlic, minced; 4 tbs (59 ml) olive oil