Place frozen chicken breasts in bottom of slow cooker. Cover chicken with sliced sausage. Sprinkle onions, peppers, potatoes and carrots over chicken and sausage. Dissolve 3 bouillon cubes in 1/2 cup of boiling water. In medium bowl, mix both cans of soup with bouillon mixture. Add garlic and cajun seasoning to mixture. Pour mixture over contents of slow cooker. Cook on low for 8 hours,