Bring a large pot of salted water to a boil and cook the whole wheat linguine according to package directions until al dente.
While the pasta cooks, spiralize the zucchini into thin ribbons and set aside.
In a large skillet over medium heat, add the olive oil and ghee, stirring until the ghee is completely melted.
Add the minced garlic and red pepper flakes to the skillet, sautéing for 60 seconds until fragrant but not browned.
Increase the heat to medium-high and add the shrimp in a single layer, seasoning them with sea salt and black pepper.
Cook the shrimp for 2 minutes per side until they are pink, opaque, and slightly curled.
Toss the cooked linguine and zucchini ribbons into the skillet, stirring constantly for 2 minutes to coat the noodles and soften the zucchini.
Remove the skillet from the heat and stir in the fresh lemon juice, lemon zest, and chopped parsley.
Serve immediately, ensuring the garlic butter sauce is evenly distributed over the shrimp and pasta.