Crunchy Chicken, Mushroom, and Green Pea Casserole

Recipe by ratherbeswimmin
READY IN: 1hr 20mins




  • Preheat oven to 350°.
  • In a skillet, melt 2 tablespoons butter over medium heat; add in chicken; brown until just golden on all sides, 5-6 minutes.
  • Add in leek; cook/stir until softened, 5 minutes.
  • Add in mushrooms and peas; stir until peas have thawed, about 3 minutes.
  • Add in sour cream and mustard; season to taste with salt and pepper; stir well; remove from heat.
  • Transfer mixture to a greased 1 ½ to 2 quart casserole.
  • In a mixing bowl, combine flour, oats, and the remaining ¼ cup butter; work with a fork (or pastry blender) until the mixture is mealy.
  • Add in bread crumbs, cheese, and tarragon; stir until well blended.
  • Spoon evenly over chicken mixture; bake 35-40 minutes, until golden brown.