Cheesy Italian Rice with Sausage

In a medium saucepan, cook rice according to package directions. Meanwhile, in a large skillet over medium heat, heat oil. Add onion and garlic and cook until soft, 6 minutes, then season with salt. Add Italian sausage and cook until browned, then add spinach and cook until wilted, 3 to 4 minutes more. Add cooked rice and cheeses and stir until well combined. Drizzle with olive oil, squeeze with lemon juice, and season with salt.