Cook pasta according to package directions, omitting salt and fat. Drain in a colander over a bowl, reserving 1/2 cup cooking liquid.
Heat a large skillet over medium-high heat. Add oil; swirl to coat. Add shrimp, fennel, and shallots; sauté 3 minutes. Add garlic; sauté 30 seconds. Add spinach; cook 2 minutes or until spinach wilts.
Stir in rind and next 3 ingredients (through salt). Stir in reserved cooking liquid; cook 1 minute or until slightly thickened. Add pasta and Parmesan cheese; toss to coat. Top each serving with 1 tablespoon ricotta.
A very basic recipe that you can adjust with add-ons or substitutions. I used white wine instead of cooking water, added kalamata olives and capers, a chopped tomato, a heaping tsp. of pesto, and feta instead of ricotta & parmesan. I know that changes it a lot, but a recipe this basic needs additions. Portion sizes would be okay if you were having bread, salad, desert. For a one dish meal, this served me & my husband with no leftovers. If you are using dried pasta, 6 oz. dried linguine is equivalent.
I loved the flavors of the pasta with the fennel and spinach. Next time I will definately throw in more than what is shown in the recipe. I probably added more lemon juice and less pasta than the recipe called for because I wasn't sure a full package of pasta would get coated. I'm not sure I will add the ricotta next time, since I loved the flavor of the fresh parmesan cheese.
Kinda surprised by all the good ratings. I thought it was kind of bland--I don't know if I just wanted a "cheesier" flavor (ah, the downsides of the "part-skim") or what, but it was kind of blah to me. The lemon was nice, and we got some great tiger shrimp on sale, but the sauce needed more flavor and I had to add a lot of cracked black pepper when plating. I just wish there was more depth, maybe. And I think I would throw in more spinach.
I made this with dry whole wheat linguine and I didn't have any ricotta. It was a fast, easy, and really good dish. I used more than the stated fennel, just b/c they one I got was big. I like to add more veggies whenever I can. My boys (4&6) also ate it right up without complaints :) I will make again for sure.