01 - Melt butter in a large skillet over medium heat. Add diced onion and cook for 2-3 minutes until translucent.
02 - Stir in minced garlic and cook for 1 minute until fragrant, being careful not to burn.
03 - Add orzo pasta to the skillet, stirring constantly for 1 minute to lightly toast and enhance nutty flavor.
04 - Pour in vegetable broth and add chopped sun-dried tomatoes. Bring to a gentle simmer, stirring occasionally.
05 - Let orzo cook for 8-10 minutes, stirring occasionally, until al dente and most liquid is absorbed.
06 - Pour in heavy cream, dried thyme, and chili flakes. Mix thoroughly and simmer for 2-3 minutes until sauce thickens.
07 - Fold in baby spinach and Parmesan cheese. Stir continuously until spinach wilts and cheese melts completely. Season with salt and pepper.
08 - Remove from heat immediately. Plate while hot and garnish with fresh basil leaves and additional Parmesan if desired.