Roasted Chicken and Brie Frittata

INGREDIENTS

• 2 Tbs. vegetable oil
• 4 shallots, cut into 1/4-inch slices
• 10 eggs, lightly beaten
• 1/2 tsp. finely chopped fresh thyme
• 3 Tbs. plus 1 tsp. finely chopped fresh flat-leaf parsley
• 1 1/2 cups shredded roast chicken
• 6 oz. Brie cheese, cut into 1/2-inch dice
• Kosher salt and freshly ground pepper, to taste
• 12 slices walnut bread, toasted and buttered