Preheat oven to 350 degrees Fahrenheit. Grease or line muffin tins.

In a medium bowl, whisk together one cup flour, oats, baking powder, baking soda, and salt.

In a large bowl, combine egg, oil, yogurt, honey, and vanilla. Mix well. Slowly add the dry ingredients, half a cup at a time, to the wet ingredients until just combined. Do not overmix.

Toss berries with one tablespoon flour. Fold berries into the batter.

Fill muffin tins three-fourths of the way. Bake for 20 to 25 minutes, until muffins are golden brown and an inserted toothpick comes out dry.