Preheat the oven to 350°F. Lightly grease (I used nonstick cooking spray) two 3 ounce or one 6 ounce ramekin or oven safe baking dish.Melt the butter in a medium saucepan. Add the shrimp, garlic, salt, and pepper (you can cut the shrimp into smaller pieces before or after cooking; I lifted my cooked shrimp from the butter with a slotted spoon, coarsely chopped into ¼" to ½" pieces and then added them back in). Cook over medium high heat, stirring occasionally, until the shrimp is pink and the garlic is fragrant (about 5 minutes).In a medium bowl stir together the cream cheese, 1 cup of the shredded cheese, and Greek yogurt. Add the shrimp, garlic, butter mixture, scraping the pan to get all the buttery garlic bits.Squeeze in the lemon juice. add the artichokes, and give everything a good stir. Spoon into the prepared baking dish and then cover with the remaining cheese.Place the baking dish(es) on a baking sheet (to prevent the cheese from bubbling over in the oven) and bake for 20 minutes.Turn the oven to Low Broil and then broil for 3 minutes to melt and slightly brown the cheese on top.Serve hot with sliced baguette, crackers, or tortilla chips.