Preheat the oven to 225 degrees Celsius.
Divide the red bell pepper in two and core it.
Put garlic cloves in aluminium foil.
Add red bell pepper and garlic cloves on a parchment covered baking sheet and bake for 30 minutes.
Meanwhile make two fairly thick (1-1 1/2 cm) slices from the mid of a cauliflower head.
Add to the baking sheet and drizzle with olive oil (if using) and 1 tsp sea salt. Bake in the oven until golden brown (about 20-25 minutes) until golden brown and softened. I like my cauliflower steak not fully baked though. I take it out when it still has come chewing recistance left.
Meanwhile pit and slice the olives and crumble the feta cheese.
When the red bell pepper and cauliflower is ready turn off the oven.
Take out the red bell pepper and let it cool for a few minutes, until you can peel it without burning your fingers.
Add the peeled red bell pepper, chickpeas, garlic cloves, lemon juice, sea salt and tahini (if using) to a bowl and mix uging a hand mixer or a high speed blender. Taste to see if more seasoning is needed.
Place the red bell pepper hummus on plates followed by cauliflower. Top with sun dried tomatoes, olives, crumbled feta cheese and parsley.