Place pea pods and water in microwave-safe bowl; cover and cook on high 3 to 5 minutes or until crisp-tender. Meanwhile, in small skillet, cook onion in 2 tablespoons butter over medium heat until crisp-tender.
Drain peas; add to onion mixture. Add salt, pepper and remaining butter; toss to coat. Cook and stir until heated through.
Note: This recipe was tested in a 1,100-watt microwave.