Cut off tops of tomatoes (retain topand carefully scoop out flesh (retain this as well).
Cut off tops of peppers (retain top and remove seeds and membrane.
Place tomatoes and peppers in a pan large enough to hold them comfortably and give each veg a tiny dash of sugar with the tips of your fingertips (I really think this is important!).
Take tomato flesh and process it until pureed.
Add olive oil, rice, onion, garlic, mint, parsley, nuts, cheese, sultanas, 1 teaspoon of salt and 1/2 teaspoon of pepper (or season to taste).
Stuff the vegetables evenly with this mixture. Replace tops of tomatoes and peppers.
Combine 1 cup of water and 1/2 cup olive oil with a scant tablespoonful of tomato paste and a little salt and pepper and pour this around the veg.
Bake in a preheated 375F oven (180C) for approx 1 3/4 hours (vegetables should pierce easily and be slightly blackened in parts).
Turn off oven and leave in for another hour to 'mellow' before serving.
This is best served slightly warm or at room temperature.