In a large bowl, mix all ingredients with your hands until well combined.
Form mixture into meatballs about 1 ½ inches in diameter and place on a large parchment-lined, rimmed baking sheet.
Makes 20-24 meatballs. Can be made 1 day ahead of making stew. Cover and chill.
Stew
Heat 2 tablespoons olive oil in a large Dutch oven over medium-high heat.
Add half of the meatballs to the pot in a single layer. Brown on all sides, about 8 minutes. Transfer meatballs to a plate and cover with aluminum foil to keep warm.
Heat the remaining 2 tablespoons of olive oil and add the other half of meatballs to the pot. Brown on all sides and transfer to plate with the other meatballs.
Add squash, carrots, cauliflower and onion to the pot. Season with salt and pepper, and cook to soften, about 5 minutes, stirring frequently.
Stir in garlic and crushed red pepper flakes. Cook 1-2 minutes, stirring frequently.
Add wine to deglaze the pot, scraping up browings. Let simmer 2 minutes.
Stir in stock, Pomi tomatoes, diced tomatoes and bay leaf. Bring to boil and reduce to medium heat to simmer.
Nestle meatballs into the pot. Cook 10-12 minutes until vegetables are tender and meatballs are cooked through.
Remove from heat and stir in fresh parsley and thyme. Ladle into bowls and serve with parmesan and hot sauce, to taste. Enjoy!