Bow Tie Pasta Toss

Ingredients

• 8 ounces uncooked bow tie pasta
• 3/4 teaspoon salt, divided
• 1 cup grape tomatoes, cut in half
• 1 (2.25-oz.) can sliced black olives, drained
• 1 tablespoon finely chopped sweet onion
• 3 tablespoons olive oil
• 3 tablespoons balsamic vinegar
• 1 small garlic clove, pressed
• 1 teaspoon chopped fresh oregano
• 1/2 (4-oz.) package crumbled feta cheese
• Garnish: fresh oregano sprigs