Preheat oven to 375F and line a muffin pan with 12 liners.
Make the batter:
In a large mixing bowl, whisk the yogurt with egg, butter, and vanilla extract until smooth.
Add the flour, sugar, baking powder, baking soda, salt, and oats. Stir until the batter is just combined. Gently fold in the strawberries.
Bake:
Fill muffin cups ¾th full and bake for 22 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
Remove the muffins from the oven and allow them to cool down before serving.
Notes
You can also use plain, vanilla, or strawberry flavored yogurt- the flavored yogurts will give the muffins a sweeter flavor without a ton of added sugar. While regular yogurt won’t provide as much nutritional benefit as Greek yogurt would, it will still provide that fluffy moist texture, so you can use it if that’s what you have on hand.
You can also use 1:1 Gluten-Free flour or oat flour. The oat flour will make the muffin texture slightly heartier, but that's not a bad thing.