One pan eggs with tomatoes peppers yogurt

Name: One-pan eggs with tomatoes, peppers & yogurt
Ingredients: 2 tbsp olive oil; 2 onions sliced; 1 red or green pepper halved deseeded and sliced; 1-2 red chillies deseeded and sliced; 400g can chopped tomatoes; 1-2 tsp caster sugar; 4 eggs; small bunch parsley roughly chopped; 6 tbsp thick, creamy yogurt; 2 garlic cloves crushed