Heat oven to 180°C (350°F). Line or grease a loaf pan.
In a large bowl, mix oats, nuts, seeds, baking powder, and salt.
Whisk eggs, yogurt, and olive oil; add to dry mix.
Stir until thick and evenly combined.
Transfer to loaf pan, press down firmly.
Bake 40–45 minutes until firm and golden.
Cool completely before slicing (important!).
