Add rice and garlic to skillet. Cook over medium heat 30 seconds, stirring frequently. Stir in pumpkin and 1/2 cup of the broth. Cook uncovered, stirring frequently, until liquid is absorbed. Stir in an additional 1/2 cup broth. Continue cooking about 15 minutes, stirring constantly and adding broth 1/2 cup at a time after previous additions have been absorbed.