To make the soup, start by preheating your oven to 400 F.
Next, prepare the butternut squash by washing it and chopping it into cubes. Place the cubes into a dutch oven, alongside the olive oil, sea salt, black pepper, and Italian seasoning. Toss until the butternut squash is fully coated in the seasonings.
Nestle the feta cheese block in the center of the pot with the butternut squash, then slice the garlic bulb and place the garlic, cut-side down, onto the feta cheese block.
Place the cover on top of the dutch oven, then place it in the oven to bake for 45 minutes to 1 hour, or until the squash is tender and the cheese is melted.
While the soup is cooking, prepare the feta cheese croutons according to the instructions below.
Remove the pot from the oven, take off the cover, and pull out the garlic bulb. Squeeze the garlic into the pot and add in the honey. Mix until the ingredients are fully combined.
Then, transfer the butternut squash mixture into a blender, alongside the vegetable broth, and blend until the soup is smooth and creamy.
Taste the soup and season with more sea salt, if desired. Ladle the soup into bowls, top with the sourdough feta croutons, then serve and enjoy!