In a bowl, combine the shrimp with minced garlic and salt. Toss well to coat evenly and let it marinate for 15–20 minutes while you prepare the sauce and salad.
To make the green sauce, blend cilantro, parsley, garlic, shallot, olive oil, red wine vinegar, salt, and pepper in a blender or food processor until smooth. Taste and adjust seasoning as needed. Reserve 3 tablespoons of the sauce for the salad and set the rest aside. Add 1 tbsp of green garlicky sauce to the shrimp and let it continue marinating while you prepare the ingredients for your salad.
In a large mixing bowl, combine the cannellini beans, quartered radishes, finely chopped kale or spinach, diced avocado, sliced shallot, and halved cherry tomatoes. Add the reserved 3 tablespoons of green garlicky sauce, 3 tablespoons olive oil, and 1 tablespoon red wine vinegar along with a pinch of salt. Toss gently until everything is evenly coated.
Heat a large skillet over medium-high heat with a drizzle of olive oil. Once the skillet is hot, add the marinated shrimp in a single layer. Cook for 2–3 minutes on each side until the shrimp turn pink and opaque.
To serve, divide the salad evenly between two plates. Top with the cooked shrimp and drizzle some of the remaining green sauce over everything. Serve immediately and enjoy!