1. Preheat the oven to 200°C (392°F).
2. Cut the fresh sheep cheese into cubes.
3. Quarter the tomatoes.
4. Mix the mozzarella, tomatoes, and pesto.
5. Divide the pizza dough into 8 equal-sized balls.
6. Place the filling in the center of each ball and seal it well.
7. Set aside 2 tablespoons of filling for decorating the muffins.
8. Place the pizza balls in muffin molds.
9. Bake for 12 minutes.
10. Spread the remaining filling on top of each muffin.
11. Bake again for 12 minutes.