Line a 9X9 inch baking pan with parchment paper and spray with nonstick cooking spray.
In medium mixing bowl, stir together the eggs, milk, honey, nut butter*, and vanilla.
In a large bowl, mix the oats, baking powder, cinnamon, and salt.
Add the liquid mixture to the dry ingredients and stir together until just combined. Next, fold in the berries, reserving a few for the top.
Pour the mixture into the lined and greased baking pan, and arrange the reserved berries on top.
Bake for 35 to 40 minutes until set.
Let cool in the pan before slicing into six servings.
Notes
*Natural, more runny nut butters tend to mix in the best for this recipe. If you are using a thicker nut butter, try heating it in the microwave for 30 seconds and then add it to the liquid mixture.