Corn Chowder with tomatoes

2 tablespoons butter 1/4 small yellow onion , diced 2 tablespoons all-purpose flour 3 cups chicken stock 2 lbs frozen corn kernels , thawed 10 roma tomatoes ,[...]

2 slices bacon , finely diced 2 onions , finely chopped 1 red bell pepper , stemmed, seeded and finely diced or 1 green bell pepper , stemmed, seeded and[...]

2 slices salt pork or 2 slices bacon , finely diced 2 onions , finely chopped celery rib , finely diced 2 -3 jalapeno peppers, stemmed, seeded and finely[...]