Drain, peel, and carefully clean the squid in warm water and cut them into pieces.

Finely chop the onions and garlic.

Remove the seeds from the tomatoes and cut them into cubes.

Cut the bell peppers into slices.

Place all the ingredients on the griddle.

Season with salt and pepper.

Cook, stirring frequently with a spatula, for 15 to 20 minutes. During cooking, pour a drizzle of olive oil.

The squid and vegetables should be served nicely browned.