Slow-Cooker Cajun Stew

INGREDIENTS

• 3/4 pound andouille or kielbasa, sliced into 1/2-inch-thick rounds
• 1 red onion, sliced into wedges
• 2 garlic cloves, minced
• 2 celery stalks, coarsely chopped
• 1 red or green bell pepper, coarsely chopped
• 2 tablespoons all-purpose flour
• 1 (28-ounce) can diced tomatoes
• 1/4 teaspoon cayenne pepper
• Coarse salt
• 1/2 pound large shrimp, peeled and deveined
• 2 cups frozen cut okra (from an 8-ounce package), thawed