Tomato Basil Soup, Slow Cooker

• From Mel's Kitchen Cafe HERE
• 
  
• 2 (14-ounce each) cans petite diced tomatoes, undrained
• 1 cup finely diced celery (in food processor) 
• 1 cup finely diced carrots
• 1 cup finely diced onions
• 1 teaspoon dried oregano
• 1 tablespoon dried basil
• 4 cups low-sodium chicken broth
• 1 bay leaf
• 1/4 (4 tablespoons) butter
• 1/2 cup flour
• 1 cup freshly grated Parmesan cheese
• 2 cups fat free or regular half-and-half, lightly warmed
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• Croutons for serving (homemade version here)

Directions:

1. In a 5-quart slow cooker, combine the tomatoes, celery, carrots, onions, oregano, basil, broth, and bay leaf. Cover and cook on low for 5-7 hours until the vegetables are tender.
2. About 45 minutes before serving, melt the butter over low heat in a medium saucepan. Add the flour and cook, stirring constantly, until the mixture is golden about 3 minutes. The mixture will be crumbly, but that's ok.
3. Whisking constantly, slowly ladle in 1 cup (or a ladleful) of the hot soup from the slow cooker. Whisk until smooth and bubbly. Add another cup or ladleful and stir again until smooth. Add another cup or two and stir until smooth.
4. Stir the creamy, hot mixture back into the slow cooker. Add the Parmesan cheese, half-and-half, salt and pepper, adding more salt and pepper if needed.
5. Cover and cook on low for 30 minutes until ready to serve (at this point, you can blend for smoother texture, if desired). Serve with homemade croutons, if desired (and trust me, you'll want to desire it).