Steam the peppers

• Halve the bell peppers and remove the seeds and membranes.
• Steam the pepper halves until slightly softened.

Rice and sauté the cauliflower

• Pulse the cauliflower in a food processor until it resembles rice.
• Sauté the cauliflower rice in a little olive oil.

Cook the filling

• Cook the onion, diced bell pepper, ground beef and garlic until browned.
• Season with salt and black pepper.

Combine the filling

• Toss the cauliflower rice with the marinara sauce and pecorino.
• Mix into the beef mixture.

Stuff and bake

• Pack the filling into the pepper halves and place them in a baking dish.
• Top with the shredded cheese.
• Bake until golden and bubbling.