Spray popover pans with nonstick spray. Fill each of the tins about 3/4 full with the batter and sprinkle the tops of each with 1 tablespoon Parmesan. Bake until puffed and deep brown, about 40 minutes. Transfer the popovers to a rack.
To make the scrambled eggs: Whisk the eggs together with the sour cream, 1/8 teaspoon salt and freshly ground black pepper, and set aside. Heat 1 teaspoon olive oil in a medium nonstick skillet over medium heat. Add the baby spinach and cook, tossing, until wilted, about 1 minute. Remove to a colander and drain any excess liquid. Transfer to a cutting board and chop finely. Set aside.
Wipe out the skillet and return to medium heat. Add remaining 2 teaspoons oil and the ham. Sauté for 2 minutes or until lightly browned. Lower the heat to low and add the eggs. Cook, stirring occasionally, until just set, about 4 minutes. Add the spinach to the eggs and stir to combine.
To serve, open the popovers and fill with the eggs. Serve immediately.
Nutrition information per serving:
Calories311Fat15 gSodium670 mg