Bring a large pot of salted water to a rolling boil. Add the pasta and cook until just al dente, about 8-10 minutes. Drain and set aside, reserving a cup of pasta water.
While the pasta cooks, heat 1 tablespoon of olive oil in a skillet over medium-high heat. Add the shrimp in a single layer and cook for about 2-3 minutes per side until pink and opaque. Remove the shrimp and set aside.
In the same skillet, add another tablespoon of olive oil and toss in the minced garlic. Cook for about 30 seconds until fragrant, with a gentle sizzle and a fragrant aroma filling the air.
Add the fresh spinach to the skillet and stir constantly for 1-2 minutes until wilted and vibrant green. The spinach should soften quickly, releasing a mild, earthy aroma.
Return the cooked shrimp to the skillet and toss gently to combine with the greens and garlic. Pour in the reserved pasta water and stir to loosen the mixture, creating a lightly sauced, glossy coating.
Add the drained pasta to the skillet and toss everything together until evenly coated and heated through, about 2 minutes. Squeeze fresh lemon juice over the top and season with salt and pepper to taste.
Serve immediately, garnished with extra lemon wedges or herbs if desired. The dish should look vibrant, with pink shrimp, bright green spinach, and glossy pasta ready to enjoy.