In a bowl, combine tomatoes, onion salt, parsley, basil, vinegar, salt, sugar, & pepper. Mix well.

Heat olive oil in a medium skillet over medium-high heat until hot. Saute garlic in oil until golden brown. Remove from heat.

Pour mixture over tomato mixture. Mix well. Cover. Refrigerate until pasta is cooked.

Cook pasta according to package directions. Drain.

Add pasta back to the pan pasta was cooked in. Add tomato mixture. Toss well. Heat until heated through.

Serve.