Toss the grapes with 1 Tbsp olive oil & salt & place on a parchment lined baking sheet. Roast 20-25 minutes until the skins start to burst & the juices begin to caramelize. Set aside to cool slightly.
In a saucepan over medium heat, cook the ground meat until fully browned. Break meat into small pieces as it cooks. Drain any excess fat to prevent a soggy crust. Stir in the garlic powder & herbs during the last minute of cooking.
Spread ricotta evenly over Naan breads & season with salt & pepper. Add a thin layer of shredded cheese followed by the cooked meat & onion. Scatter roasted grapes & fresh thyme over the top
Bake at 400 F. for 8-12 minutes until filling is hot & melty.
Immediately after removing the pizza from the oven scatter fresh arugula over the top[ for a peppery bite. The residual heat will slightly wilt the greens. Drizzle with honey for an extra layer of flavor.