Preheat gas grill to medium heat (400 F). Clean grates.

Grill peppers for 3-4 minutes per side (or longer, if needed), until charred on all sides, but not burned.

Place in a bowl with lid, or if you don't have a lid, cover with plastic wrap. Let peppers cool to room temperature. Peel peppers.

To peel the tomatoes: Bring a pot of water to a boil. Make a small cross cut ( 1/4 in x 1/4 in) at the bottom of each tomato. Drop tomatoes in boiling water for 1 minute, until skins start to wrinkle.

Place tomatoes in a bowl with cold water for a few minutes, until cool enough to handle.

Peel tomatoes, cut into small cubes.

In a saucepan, combine tomatoes, olive oil, garlic, salt, sugar, basil and oregano. Bring to a simmer, then reduce heat to medium and cook for 20-25 minutes, until thick, stirring frequently. Taste sauce and add more seasoning, if needed.

Season peppers with salt. Serve topped with the tomato sauce. Garnish with parsley.