n a bowl, mix cumin, paprika, turmeric, cinnamon, salt, and pepper.
Rub the spice mixture evenly over the chicken breasts. Let them marinate for 30 minutes.
Heat olive oil in a skillet over medium-high heat. Cook the chicken for 6-8 minutes per side, until cooked through.
Remove the chicken from the skillet and let it rest for a few minutes. Slice it into thin strips.
Preheat a panini press or grill pan. Place 2 slices of bread on a clean surface.
Layer sliced chicken, mozzarella cheese, and chopped cilantro on one slice of bread. Top with the other slice to make a sandwich.
Grill the sandwich in the panini press or grill pan until the bread is golden and the cheese is melted.
Remove the sandwich from the heat and let it cool slightly.
Cut the sandwich diagonally and serve with a dollop of Greek yogurt on the side.