Preheat broiler.

Heat a large nonstick skillet over medium-high heat. and coat with cooking spray. Add 2 minced garlic cloves; saute 1 minute. Add 1/4 teaspoon salt, 1/8 teaspoon pepper, tomatoes, and spinach; saute until moisture evaporates. Remove from heat; stir in cheeses and rind.

Cut a horizontal slit through thickest portion of each pork chop to form a pocket. Stuff about 1/4 cup spinach mixture into each pocket. Sprinkle 1/4 teaspoon salt and 1/8 teaspoon peper over pork. Arrange pork on rack of a broiler pan or roasting pan coated with cooking spray; place rack in pan. Combine 2 minced garlic cloves, juice, mustard, and oregano in a bowl; stir well. Brush half of mustard mixture over pork. Broil 6 minutes; turn chops. Brush remaining mixture over pork; broil 2 minutes or until done.