Crock Pot: Tomato-Basil Parmesan Soup

This is SO good and I love that I can make it in the crockpot. It makes about 2 quarts which is a lot.

Crock Pot: Tomato-Basil Parmesan Soup
2 (14 oz) cans diced tomatoes, with juice
1 cup finely diced celery
1 cup finely diced carrots
1 cup finely diced onions
4 cups chicken broth
1/2 bay leaf

Combine above and cook on low for 5-7 hours (add herbs if using fresh)

1 tsp dried oregano (1 TBS fresh)
1 TBS dried basil (1/4 cup fresh)
1/2 cup butter
1/2 cup flour
1 cup parmesan cheese
2 cups half and half (warmed)
1 tsp salt
1/4 tsp black pepper

About an hour before serving make a roux. Melt butter over low heat in a skillet and add flour. stir constantly with a whisk for 5-7 minutes. Slowly stir in 1 cup of hot soup from the slow cooker. Add another 3 cups soup and stir until smooth. Add all back into slow cooker. Stir and add Parmesan cheese, warmed half and half, salt, and pepper. Cover and cook for another hour.