Preheat oven to 350°F (175°C). Lightly grease or line a mini loaf pan.
Mash banana in a medium bowl until smooth.
Whisk in eggs and vanilla until fully combined.
Stir in collagen powder and ground flaxseed until smooth.
Add almond flour, coconut flour, cinnamon, salt, and baking soda. Stir just until combined.
Fold in chocolate chips and chopped pecans.
Transfer batter to prepared pan(s). Bake for 22–28 minutes, or until a toothpick inserted in the center comes out clean. Let cool for 5–10 minutes before slicing.
While the banana bread bakes, brew coffee and prepare as desired.
Portion arugula. Drizzle with olive oil and drizzle lightly with lemon juice if desired. Season with salt and pepper.
Bring a saucepan of water to a gentle simmer. Crack the eggs into a bowl, then carefully slide into the simmering water. Poach for 3–4 minutes for runny yolks or longer if preferred.
Remove eggs with a slotted spoon, drain briefly, and place over a bed of arugula. Season with salt and pepper.
Serve poached eggs alongside sliced banana bread and coffee.