Coat a 7x11 pan with coconut oil and place in the freezer for about 10 minutes.
Process dates in a food processor. Pulse in remaining ingredients. Spread mixture into cold pan. Return to freezer until firm, about Mix the coconut oil, pea protein powder and honey in a small bowl. Frost the banana bread When frosting is firm, cut into squares and remove from pan. Store in refrigerator or freezer until ready to serve.