Mix oil, egg, sugar, greek yogurt, milk, lemon juice, and lemon rind together in a medium mixing bowl. Add the flour, baking powder, and salt. Stir until combined.
Fill muffin cups about ½ - ⅔ full with batter. I use an ice cream scoop. I made 12 muffins with this recipe.
Bake muffins in a 350 degree oven for 16 - 20 minutes, until a toothpick inserted in the center comes out clean. Cool slightly.
Lime Glaze
Mix together powdered sugar, lime zest, lime juice and milk if needed. Dip the tops of the slightly warm muffins in the glaze and set to cool. Enjoy!