In a large pot or deep skillet, heat the olive oil over medium heat. Add the minced garlic and red pepper flakes, sautéing until fragrant (about 1 minute). Be careful not to burn the garlic.
Add the spaghetti to the pot, followed by the lemon zest, lemon juice, and vegetable broth. Stir everything together.
Bring the mixture to a boil, then reduce the heat to medium-low. Cover and simmer for about 10-12 minutes, or until the pasta is al dente and most of the liquid is absorbed, stirring occasionally.
Once the pasta is cooked, remove the pot from heat. Add the ricotta cheese and stir gently until the pasta is creamy and well-coated.
Gently fold in the baby spinach or arugula until wilted and incorporated.
Season with salt and pepper to taste. Serve immediately.
Garnish with freshly chopped basil or parsley and a sprinkle of grated Parmesan cheese if desired.
Notes
Adjust the red pepper flakes based on your preferred spice level.
Keyword lemon, one pot, pasta, quick meal, ricotta