Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large microwave-safe bowl, combine shredded cheese and almond flour, microwave for 30-45 seconds until melty, stir until smooth.

Sauté sliced beef, bell peppers, and onions in olive oil for 5-7 minutes until browned and tender, season with salt and pepper, then cool slightly.

Dust a surface with almond flour, roll out the dough into a rectangle, spread filling, and roll tightly to form logs.

Bake for 15-20 minutes until golden brown and aromatic.

Cool for a few minutes before slicing and serving warm.