Healthy Chocolate Pumpkin Snack Cake

Name: Healthy Chocolate Pumpkin Snack Cake
Ingredients: 1 large zucchini or yellow squash (230g, puréed); 2 eggs; ½ cup liquid egg whites (120g); 15- oz can pumpkin purée; ¼ + 2 Tbsp almond butter (90g); 1 ½ Tbsp. vanilla extract (22g); 5 scoops chocolate protein powder (150g*); 2 ½ cups oat flour (240g); 3 Tbsp. black cocoa powder (30g); 2 tsp. baking powder; 1 tsp. kosher salt; 1 tsp. baking soda; 1-2 Tbsp. liquid stevia (15-30g, or favorite sweetener**); 6 Tbsp. chocolate chips (90g); Optional flake salt for sprinkling on top