Heat 1 tbsp olive oil in a skillet over medium-high heat. Season chicken with garlic powder, paprika, salt, and pepper. Sear for 2-3 minutes per side until golden crust forms.
Transfer chicken to oven preheated to 375°F (or use stovetop). Cook until internal temperature reaches 165°F (about 10-12 minutes total). Let rest 5 minutes before slicing.
Meanwhile, sauté bell pepper, red onion, and remaining 1 tbsp olive oil in skillet until tender (4-5 minutes). Add water/broth for extra moisture if needed.
In a bowl, combine cottage cheese with lemon juice and 1 tbsp olive oil from pan. Mix until smooth and slightly creamy.
Assemble bowls with chicken slices, cottage cheese base, and cooked vegetables. Top with cucumber, tomato, and fresh dill.