Clean the squid and cut your desired size (I cut into 2), season with salt and pepper and set aside.
In a saucepan, heat the oil over medium-high heat, add the chopped onion, minced garlic, parsley and sauté for about 1 minute.
Add the chopped tomatoes, seasoning with salt and pepper and simmer for about 10-15 minutes over medium-low heat.
Add the seasoned squid and combine cook on medium-low heat for about 3 minutes. You don’t want to overcook it and turn it into rubber. When the squid turns opaque and it loses its gelatinous quality it is done. That's it!
Serve with lemon wedge.