Heat the oil in a large nonstick skillet over medium-high heat. Add the mustard seeds; cover pan, and cook 2 minutes or until seeds stop popping. Uncover pan. Stir in the onion and the next 5 ingredients (onion through garlic), and cook for 5 minutes or until the onion is golden, stirring frequently.
Reduce heat, and stir in broth, tomato paste, juice, and salt. Cook until thick (about 1 minute), stirring constantly. Add shrimp; cook 4 minutes or until shrimp are done. Sprinkle with cilantro.