You can be on a vegan diet and still gain weight if you plan it accordingly. Here are some weight-gaining vegan food recipes you can try.
Vegan mass gainer fat shake
Here is the list of ingredients for this weight gaining shake.

• 12 ounces of raw almond milk
• 1 tbsp ground flax seed
• 2-3 tbsp raw almond butter
• 1 tbsp coconut oil
• 2 tbsp chia seeds
• 1 tsp maca powder
• 1 banana
• 1 tsp vanilla extract
• 2 scoops vegan protein powder
• 1 tsp wheatgrass powder

Blend all ingredients in a blender and the shake is ready to serve.
Vegan mass gainer smoothie
Here is the list of ingredients of the vegan mass gainer smoothie.

• 2 brazil nuts
• 3 pitted dates, soaked
• ½ cup silken tofu
• 1 tbsp flax seeds
• 1 tbsp cacao nibs
• 1 large frozen banana
• ¾ cup of rice
• 1/8 cup peanut butter
• 1 cup sweetened almond milk
• 1 tbsp cacao powder

Blend all ingredients in a high power blender until smooth.