Creating Healthy Strawberry Banana Yogurt Muffins is straightforward with the following steps:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C). Line or grease a muffin tin to prepare for baking.
2. Mix Dry Ingredients: In a medium bowl, combine the whole wheat flour, baking soda, baking powder, and salt. Whisk together well until blended.
3. Blend Wet Ingredients: In a large bowl, mix the Greek yogurt, brown sugar, egg, mashed banana, and vanilla extract. Ensure it’s all combined smoothly.
4. Combine Mixtures: Gradually add the dry ingredients to the wet mixture. Stir gently until just combined; be careful not to overmix, as this can lead to dense muffins.
5. Fold in Strawberries: Carefully fold in the diced strawberries, ensuring they are evenly distributed throughout the batter.
6. Add Oil: Drizzle in the melted coconut oil, mixing gently until everything is incorporated.
7. Scoop Batter: Using a spoon or ice cream scoop, fill the prepared muffin tin cups about two-thirds full with batter.
8. Bake: Place in your preheated oven and bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.
9. Cool Muffins: Remove from the oven and allow the muffins to cool in the tin for about 10 minutes before transferring them to a wire rack to cool completely.

By following these step-by-step instructions, you’ll produce scrumptious muffins that are both healthy and satisfying!