Spring Onion Bread Soup

Name: Spring Onion Bread Soup
Ingredients: 4 cups very stale bread cubes from a nice rustic bread; 3 tablespoons butter; 6 large spring/green onions; 1 clove garlic, minced; 6 cups rich chicken broth; 1/2 teaspoon salt; 1/2 teaspoon black pepper; 1 cup light cream or half and half; 1 tablespoon fresh lemon juice; 1/2 cup finely grated parmesan cheese