Preheat oven to 400. Slice the top off your head of garlic. Add to a cocotte with cherry tomatoes. Add a nice glug of olive oil (enough to coat the tomatoes and garlic) and season with salt and pepper. Bake for about 35-40 min or until the garlic is softened and the tomatoes are jammy and browned. (see note)
Combine green goddess spread ingredients to a food processor, including the now roasted garlic. Squeeze that out of the skin into the processor. Blend until combined. Season to taste.
Add bacon slices to a pan and cook for about 5 min per side on medium heat (or to desired crispiness) Transfer to a paper towel lined plate.
Toast bread and add spread to both pieces. Add jammy tomatoes, slices of bacon and a handful of arugula. Close sandwich and that's it. Enjoy!