Easy Vegan Thai Green Curry

Name: Easy Vegan Thai Green Curry
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Cuisine: Thai
Ingredients: 1 tbsp vegetable oil; 16 oz super firm tofu ((cut into 1/2-inch cubes)); 14 oz coconut milk ((from a can. Don't shake the can or stir after opening)); 2 shallots ((sliced finely)); 1 large sweet potato ((peeled if not organic, and cut into 1/2-inch cubes)); 2 medium zucchini ((cut into 1/2-inch cubes)); Six spring onions ((chopped, white and green parts both)); 1/4 cup vegan Thai green curry paste; Salt to taste