Vegetarian mee goreng

Ingredients

• 500 gram hokkien noodles
• 1/2 cup (125ml) tomato sauce
• 1/4 cup (60ml) chilli sauce
• 1/3 cup (80ml) rice bran oil
• 2 medium onions, thinly sliced
• 2 medium potatoes, peeled, cut into 2cm cubes, cooked
• 2 tomatoes, cut into wedges
• 200 gram choy sum, cut into 5cm lengths
• 200 gram fried firm tofu, cut into thin slices
• 3 eggs, lightly beaten
• 2 1/2 cup (200g) bean sprouts, trimmed
• 2 cos lettuce leaves, finely sliced
• lime wedges, to serve
• fried shallots, to serve