Someone gave me an interesting tip at a new year's eve party. We were talking, as you do, about frozen peas. Don't boil them, he advised: saute them. As someone on the receiving end of regular accusations that I have undercooked or overcooked my peas, I was excited by the idea.
It turns out to work well. But they need a drop or two of moisture. Put a little cooking oil or butter in the pan, turn the heat to medium, and tip in the peas. Their own moisture may help to stew them; or you may need to add a little. Cook, stirring, until the peas soften: it does not take long.