Bring a large pot of salted water to a boil and cook the brown rice pasta according to package instructions until al dente.
During the final 3 minutes of the pasta's cooking time, add the trimmed asparagus pieces into the boiling water to blanch them.
Drain the pasta and asparagus, reserving 2 tablespoons of the starchy cooking water for the sauce.
Pat the shrimp dry with a paper towel and season them evenly with sea salt and black pepper.
In a large skillet, heat the ghee and olive oil over medium-high heat until the fats are shimmering.
Add the shrimp to the skillet in a single layer and sear for 1-2 minutes per side until they are pink and opaque.
Stir in the minced garlic and red pepper flakes, sautéing for 30 seconds until the garlic is fragrant.
Add the cooked pasta, blanched asparagus, lemon juice, and reserved pasta water to the skillet.
Toss all ingredients together for 1 minute to ensure the noodles are thoroughly coated in the zesty garlic sauce.
Remove from heat, garnish with freshly chopped parsley, and serve immediately.