For the biscuits:2 cups all-purpose flour
1 Tbsp. baking powder
1/2 tsp. salt
4 Tbsp. chilled unsalted butter, cut into small chunks
4 Tbsp. chilled vegetable shortening, cut into small chunks
2 Tbsp. fresh rosemary leaves or 2 tsp. dried
3/4 cup buttermilk
1 beaten egg for glaze
For the white bean purée:2 cups white beans
1 bulb roasted garlic, pulp squeezed from skins (see note)
Juice of 1/2 lemon (about 1/4 cup)
1/4 cup milk
1/2 tsp. salt
1/2 tsp. freshly ground white pepper
1/3 cup extra-virgin olive oil
1/4 cup chopped Italian flat parsley
For the roasted red peppers:3 roasted red bell peppers, peeled, seeded and cut into 2-inch pieces (see note)