Preheat your oven to 350F / 180C and grease a standard loaf tin (I use coconut oil).
In a large mixing bowl, whisk together the flour, seeds, baking powder, baking soda, salt, and spices. Add the chopped dates and stir to coat them in the flour mixture. Make a well in the centre of your dry ingredients.
In a shallow bowl, mash the bananas. Add the milk, olive oil, maple syrup, and tahini. Use a fork to gently mix the wet ingredients together until incorporated.
Add the banana mixture to the large bowl and use a wooden spoon to stir until just combined and no streaks of flour remain. Pour the batter into the prepared loaf tin and gently tap the tin on the counter to settle it. Leave the centre higher than the edges. Top the batter with another handful of sunflower seeds.
Place in on the middle rack in your oven and bake for 50-55 minutes, or until the loaf is golden and an inserted toothpick comes out clean. If your oven runs a little hot then make sure to check the bread at about the 40 minute mark.
Remove from the oven and let it cool in the tin on a cooling rack for ten minutes, then gently remove it and let it cool completely before storing. Eat at least one slice warm if you can. It keeps for 3-5 days on the counter, wrapped well, and may be frozen.