Tofu and Vegetable Bake

Name: Tofu and Vegetable Bake
Ingredients: For the vegetable mixture; 1 tablespoon vegan margarine; 1 teaspoon virgin coconut oil; 2 large red onions, finely chopped; 1/2 teaspoon sea salt; 2 medium courgettes, sliced; 1 large red bell pepper, diced; 1 tablespoon fresh tarragon; 8 medium asparagus spears; For the tofu cream; 200 g firm tofu; 1 tablespoon nutritional yeast; 150 ml water; 1/2 teaspoon agave nectar; 1 tablespoon self raising flour; 2 teaspoons egg replacement powder; 1 teaspoon black pepper