Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Slice the zucchini into 1/2-inch thick rounds and place them in a bowl.
Toss the zucchini with 0.5 tablespoon of olive oil, sea salt, and black pepper until evenly coated.
Arrange the zucchini in a single layer on the prepared baking sheet and roast for 15-20 minutes until tender and lightly browned.
While the zucchini is roasting, pat the shrimp dry with paper towels to ensure they sear properly.
Heat the remaining 1 tablespoon of olive oil in a large skillet over medium-high heat.
Add the shrimp and red pepper flakes to the skillet, cooking for approximately 2 minutes without moving them to develop a golden crust.
Flip the shrimp, add the minced garlic, and cook for another 1-2 minutes until the shrimp are pink and opaque.
Turn off the heat and stir in the lemon juice, lemon zest, and chopped fresh parsley.
Serve the garlic shrimp immediately over the bed of roasted zucchini rounds.