Mix everything together in a bowl other than the cold 1/2 of butter. Add 2 tbsp of broth if using canned peas.
Spray a 9 x13 casserole dish and pour mixture in. Top with cold butter all over and bake on 350 for 45minutes to an hour. Test with a toothpick in the middle to make sure it comes clean.
Allow 20-30 minutes for it out of the oven to set.
OPTIONAL: Drizzle with honey