Cook the Chicken
Heat 2 teaspoons olive oil in a large skillet over medium-high heat. Add the chicken, season with salt and pepper, and cook until golden brown and fully cooked through. Remove from the skillet and set aside.

Sauté Onion
In the same skillet, add the remaining 1 teaspoon of olive oil. Add chopped onion and sauté for about 1 minute until softened.

Toast Orzo and Garlic
Add orzo pasta and minced garlic to the skillet. Cook for another minute, stirring frequently, to lightly toast the orzo.

Simmer Orzo
Pour in chicken broth, stir, and bring to a boil. Cover, reduce heat to medium-low, and simmer for 5 minutes.

Add Veggies
Stir in asparagus. Cover and cook for 5 minutes until the asparagus is tender. Add the spinach and cook for 1 additional minute until wilted.

Finish the Dish
Return the cooked chicken to the skillet. Stir in lemon zest, lemon juice, and Parmesan until everything is creamy and well combined. If there’s excess liquid, simmer uncovered for 1 more minute.

Serve
Spoon into bowls and garnish with additional Parmesan if desired. Serve immediately.