1. Add the chicken, shallot, 1 clove garlic, oregano, paprika, and a pinch of red pepper, salt, and pepper to a bowl. Mix until just combined. Coat your hands with a bit of oil, roll the meat into tablespoon-size balls (will make 14-15 meatballs).
2. Heat a large skillet or dutch oven over medium-high heat and add 2 tablespoons oil. When the oil shimmers, add the meatballs and sear until crisp and cooked through, about 8-10 minutes, turning them 2-3 times. Transfer to a plate.
3. To the same skillet, add the butter and lemon slices. Sear the lemon until golden on each side, about 1 minute. Remove the lemon from the pan and add to the plate with the meatballs. To the same skillet, add 1 clove garlic and the orzo. Cook until the garlic is fragrant and the orzo toasted, about 2-3 minutes. Add the 2 1/2 cups water and 1-2 tablespoons juice from 1 lemon. Bring to a boil over high heat and cook, stirring often, until al dente, about 7-8 minutes. Slide the meatballs back into the skillet and cook until warmed through.