Banana Nut (or not) Muffins

I've adapted this recipe from The Buttermilk Cookbook: The Rest of the Carton. This is another muffin recipe Anna can't get enough of, and DH really likes it too. This recipe calls for nut meal, but for those with nut allergies, try substituting casein free mini chocolate chips!1/2 cup canola oil1 cup sugar2 beaten eggs2 large ripe mashed bananas1 tsp. vanilla2 cups All Purpose Flour Blend 1/