Prep & cut all of the veggies so that they are ready to go.
Sautee the onion garlic & bell pepper: Get out either a large pot or a dutch oven and pour about 3 to 4 tablespoons of extra virgin olive oil in it. Place this over medium heat and saute the onion until it becomes translucent. Then add in the garlic and bell peppers sauteeing them for an additional 5 minutes.
Add in the remaining ingredients: Toss in the remaining vegetables, white wine, and herbs/spices. Stir it all together and let it come to a boil for about 5 minutes, or until the tomatoes break down a form a sauce.
Let it simmer: After the tomatoes have broken down into a sauce and begins to boil, cover the pot. Then lower the heat and let everything simmer for 20 minutes.
After the 20 minutes taste the ratatouille to see if it needs any salt.
Serve the ratatouille in a bowl with some shredded basil as a garnish. Enjoy!