**Cook the Pasta:**
- Bring a large pot of salted water to a boil. Add the pasta and cook according to package instructions until al dente. Reserve 1 cup of pasta water, then drain the pasta.
**Sauté the Garlic:**
- In a large skillet, heat the olive oil over medium heat. Add the minced garlic and sauté for about 1-2 minutes until fragrant, being careful not to burn it.
**Add the Spinach:**
- Add the fresh spinach to the skillet. Cook, stirring frequently, until the spinach is wilted (about 2-3 minutes).
**Combine Pasta and Spinach:**
- Add the drained pasta to the skillet. Toss everything together, adding reserved pasta water a little at a time to achieve your desired consistency.
**Season:**
- Season with salt, pepper, and red pepper flakes if you like some heat. Mix well.
**Serve:**
- Serve hot, topped with grated Parmesan cheese or nutritional yeast if desired.