Preheat oven to 400 degrees F.
Chop the cauliflower into florets and place on a baking sheet. It can be lined with parchment paper for easier clean up but I find you get a better result when roasted directly on the pan.
Drizzle the cauliflower with the lemon, oil and salt and use your hands to mix until all the peices are coated. Roast for 30 minutes.
While the cauliflower is roasting, prepare the broccoli and tahini sauce. The broccoli can be steamed using your preferred method.
To make the tahini dressing, whisk all the ingredients together in a container until smooth and creamy. Adjust the amount of water used to reach a creamy but pourable consistency.
Prepare 4 bowls or containers with a handful of fresh spinach. Once the veggies are ready, divide them between the bowls. Add 1/2 an avocado and your desired amount of seeds to each (or follow the suggested amounts). Divide the tahini dressing between the 4 bowls.
Top with hot sauce, lemon juice, sea salt and pepper, if desired.
Serve right away. Extra bowls can be kept in the fridge for up to 2 days so if you’re making lunch for the next day, simply store in a sealed container.