In a large bowl, mix peanut butter, brown sugar, coconut oil, maple syrup, and vanilla until well blended. Slowly add cocoa powder to mixture, about 2 tablespoons at a time, and mix continuously until there are no clumps.
Add Dei Fratelli Gluten-Free Tomato Soup, flour, and salt, mixing in one at a time until well combined. Gently fold in chocolate chips.
Line an 8×8 baking dish with parchment paper. Fill pan with brownie mix and bake for 30 minutes.