Easy Cream of Asparagus Soup

Name: Easy Cream of Asparagus Soup
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 3 tbsp butter; 1 yellow onion, diced; 2 stalks celery (diced); 4 cloves garlic, minced; 1 lb asparagus, chopped; 2 Yukon gold potatoes, chopped; 1/2 tsp each salt & pepper; 1 tsp lemon zest; 3 cups chicken or vegetable broth; 1 tbsp freshly squeezed lemon juice; 1/3 cup parmesan cheese; 1/3 cup heavy cream; Baguette, sliced; Bacon, crumbled; Fresh parsley or chives, chopped; Creme fraiche, sour cream or Greek yogurt