Pat 1 lb. sea scallops dry with paper towels. Season both sides with ½ tsp salt and ¼ tsp black pepper.
Heat a large cast-iron or stainless-steel skillet over medium-high heat until hot. Add 1 tbsp olive oil and swirl to coat the pan.
Arrange the scallops in a single layer (do not overcrowd). Sear 2 to 3 minutes on the first side until browned and they release easily, then flip and sear 2 to 3 minutes more until browned and cooked through. Transfer scallops to a plate.
Reduce heat to medium and add 3 tbsp Land O Lakes® Butter with Olive Oil & Sea Salt to the skillet. Let the butter melt.
Stir in 2 tsp minced garlic and cook, stirring, until fragrant, about 30 seconds.
Squeeze the juice of half the medium lemon into the skillet. Return the scallops to the pan and spoon the butter-garlic sauce over them. Sprinkle with 1 tbsp chopped parsley.
Slice the remaining half of the lemon and serve the scallops immediately with the lemon slices alongside.