Place pepper halves, skin side down on a parchment lined rimmed baking sheet. Drizzle with a little bit of oil and season with salt.
Add garlic cloves to the centre of the pan, surrounded by the pepper pieces.
Bake on the centre rack in oven for 15-20 minutes, flipping the pepper pieces over every 5 minutes. You’ll know they’re ready when they’re soft and a little bit charred.
Allow to cool on the pan for 5 minutes.
Process the sunflower seeds in food processor on low speed for 1-2 minutes or until they begin to look sandy and no large pieces remain.
Add remaining ingredients, including roasted red peppers and garlic, to the food processor.
Process until mostly smooth, stopping to scrape down the sides as needed.