beef and cauliflower rice soup

Ingredients

• 1 tablespoon olive oil
• 1 pound ground beef
• 1 bunch scallions chopped
• 2 teaspoons each garlic powder, dried basil, and paprika
• 1/2 teaspoon black pepper
• 1 teaspoon each thyme, oregano, and salt
• 1 cup marinara sauce
• 1/4 cup tomato paste
• 4 cups beef broth
• 2 cups cauliflower rice
• 1 tablespoon red wine vinegar
• 1 cup fresh spinach leaves