01 - Melt butter in a large skillet over medium heat. Add diced onion and sauté 2-3 minutes until translucent.
02 - Stir in minced garlic and cook 1 minute until fragrant.
03 - Add orzo to skillet, toasting for 1 minute while stirring constantly.
04 - Mix in sun-dried tomatoes and pour in vegetable broth. Bring to a gentle simmer.
05 - Simmer 8-10 minutes, stirring occasionally, until orzo is al dente and most liquid is absorbed.
06 - Pour in heavy cream, thyme, and chili flakes. Simmer 2-3 minutes until sauce thickens and coats pasta.
07 - Fold in baby spinach and Parmesan. Stir until spinach wilts and cheese melts completely. Season with salt and pepper.
08 - Remove from heat. Serve immediately garnished with fresh basil and additional Parmesan if desired.