Bring a medium pot of water to a boil and cook the buckwheat soba noodles according to package directions, typically 4-5 minutes, then drain and set aside.
While the noodles cook, spiralize the zucchini into thin noodles and mince the garlic cloves.
In a large skillet, heat the ghee and olive oil over medium heat until shimmering.
Add the minced garlic and red pepper flakes to the skillet, sautéing for 1 minute until the garlic is fragrant but not browned.
Increase the heat slightly and add the shrimp to the pan, seasoning with sea salt and black pepper.
Cook the shrimp for 2-3 minutes per side until they are pink, opaque, and cooked through.
Add the zucchini noodles and lemon juice to the skillet, tossing with the shrimp for 1-2 minutes until the zucchini is slightly softened.
Add the cooked soba noodles and fresh chopped parsley to the pan, tossing everything together to coat in the garlic butter sauce.
Divide into bowls and serve immediately while hot.