Baked Frittata with Butternut Squash, Kale & Sage

Preheat oven to 400 degrees F.

Heat oil in a medium nonstick ovenproof or cast-iron skillet over medium-high heat. Add squash and cook, stirring occasionally, until just fork-tender, about 10 minutes. Add shallot; cook for 1 minute. Stir in kale by the handful. Add water; cover and reduce heat to medium-low. Cook until the kale is tender, about 5 minutes. Remove from heat; spread the mixture evenly in the pan.

Whisk eggs, sage, salt, and pepper in a large bowl. Pour the egg mixture over the squash and kale in the pan. Sprinkle evenly with cheese. Bake until set in the center, 8 to 12 minutes.

Holding the pan over a cutting board and using a large spatula, lift and slide the frittata out of the pan and onto the cutting board. Cut into wedges and sprinkle with sage. Serve with toasts.