Combine first 5 ingredients in a small bowl; stir well and set aside.
Bring broth to a simmer in a medium saucepan (do not boil). Keep warm over low heat.
Heat 2 teaspoons oil in a large saucepan over medium-high heat. Add onion; saute 3 minutes. Add rice; cook 1 minute, stirring constantly. Add wine; cook 1 minute or until liquid is nearly absorbed, stirring constantly. Add warm broth, 1/2 cup at a time, stirring constantly until each portion of broth is absorbed before adding the next (about 20 minutes total). Add tomato mixture; cook 2 minutes, stirring constantly. Remove from heat; stir in mozzarella cheese and pepper. Sprinkle each serving with Parmesan cheese.
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