Vegetable Soup with whites

2 -3 tablespoons olive oil 1 medium onion , chopped 2 stalks celery , chopped (reserve the leaves) 1 green bell peppers or 1 red bell pepper , seeded and[...]

2 -3 tablespoons olive oil 1 medium onion , chopped 2 stalks celery , chopped (reserve the leaves) 1 green bell peppers or 1 red bell pepper , seeded and[...]

3 cups peeled butternut squash or 3 cups acorn squash , cut into 1/2-inch cubes 2 cups sliced fresh mushrooms 2 (14 1/2 ounce) cans diced tomatoes , undrained[...]