Vegetable Hot Pot

Vegetables - Mixed - -

• 1 x 395 g / 14 oz can chopped tomatoes
• 1 cup chopped walnuts
• 1 T oregano
• Salt and pepper
• 4 large potatoes, peeled, cut into 7 mm / 1/4 inch slices, parboiled (once boiling, allow to simmer furiously for eight minutes and then drain immediately)
• 2 green peppers sliced
• 2 onions, sliced
• 2 T olive oil