Place the frozen strawberries, frozen banana slices, almond milk, Greek yogurt, and sweetener into a high-speed blender.

Blend on the lowest setting, using a tamper to continuously press ingredients into the blades, until the mixture is thick and smooth.

Transfer the smoothie base into a chilled serving bowl using a spatula.

Decorate the surface with granola, chia seeds, fresh blueberries, and sliced strawberries in organized rows.

Serve immediately to maintain the thick, frozen texture.