Cook the pasta until al dente according to package instructions. Drain and set aside.

In a large pot, heat oil over medium low heat. Add garlic and cook gently until lightly browned (not burnt), about 10 minutes. Reduce heat to low and add spinach, lemon juice and zest, salt, black pepper, and drained pasta. Mix well and cover.

Cook for 10 minutes, thus allowing the flavors to infuse.