Frittata with Baby Broccoli and Cheddar

INGREDIENTS

• 2/3 cup fresh bread crumbs
• 1/4 cup plus 1 tsp. extra-virgin olive oil
• 1/2 lb. baby broccoli, roughly chopped
• 12 eggs, lightly beaten
• 1 cup grated sharp cheddar cheese
• 3/4 tsp. kosher salt, plus more, to taste
• Freshly ground black pepper, to taste
• 1 fresh rosemary sprig, about 1 inch long
• 1 shallot, thinly sliced
• 1 garlic clove, minced
• 1/8 tsp. red pepper flakes