Spinach, Bacon, and Potato Frittata

Preheat oven to 350 degrees. In a medium bowl, whisk together eggs, ricotta, Parmesan, 1 teaspoon salt, and 1/4 teaspoon pepper. Set aside.

In a medium nonstick ovenproof skillet, cook bacon over medium-high until crisp, 6 to 7 minutes. Drain all but 1 teaspoon fat from pan. Add potatoes and cook until warmed through, 2 to 3 minutes. Add spinach and toss until barely wilted, about 30 seconds.

Add egg mixture and stir until slightly thickened, about 1 minute. Transfer skillet to oven and bake until center is set, about 15 minutes.

Run a rubber spatula around edge of frittata and slide it onto a serving plate. Whisk together oil and vinegar; season with salt and pepper. Toss lettuce with dressing. Serve frittata with salad.