On a lightly floured surface, divide dough into four equal pieces.
Roll or stretch each piece into a 6-inch round.
If dough shrinks back, let rest about 5 minutes, then roll again.
In a bowl, mix ricotta, mozzarella, and garlic.
Add salt and pepper to taste.
Place about 3 tbsp ricotta mixture and about 2 tbsp pasta sauce in the center of each round of dough.
Top with about 1/4 cup vegetables and about 3 tbsp meat.
Fold rounds in half over filling, making a half-moon shape.
Press edges of dough with the tines of a fork to seal.
Brush tops of calzones lightly with olive oil.
Place slightly apart on a lightly oiled baking sheet.
Bake in a 450 degrees oven until golden brown, 15 to 20 minutes; then let cool about 10 minutes on baking sheet, and then transfer to plates.