Add all waffle ingredients into a large bowl and whisk until combined. Let stand at least 10 minutes.
Heat your waffle iron and add a little coconut oil to the pan (this helps prevent the batter from sticking). Pour a ladle of batter into the iron and close it for five minutes. Repeat for remaining batter.
While the waffles are cooking, heat a small amount of olive oil in a cast iron pan and add cauliflower, kale and whole cherry tomatoes. Keep it on a medium heat for around 15-20 minutes, stirring occasionally. Remove from heat and transfer contents into a heatproof bowl.
Add pumpkin seeds to the same cast iron pan and toast over a low-to-medium heat. Once browned, remove from heat.
To assemble, place two waffles and a couple of large dessert spoons of hummus on a plate. Top with kale, cauliflower and tomatoes, as well as avocado and pumpkin seeds.