Mix the meatball mixture: In a large bowl, combine the bread, garlic, onion, parsley, cheese, salt, egg and Worcestershire. Once combined, then add in the ground pork and beef. Gently combine with clean hands or a spoon until thoroughly mixed.
8 oz. pork, ground, 2 slices fresh white bread, crust trimmed, torn into pieces, 2 cloves garlic, minced (about 1 tsp.), 1/2 medium white onion, grated or finely chopped, 1/3 cup fresh parsley, minced, 1/2 cup Pecorino Romano or Parmigiano Reggiano cheese, freshly grated, 1/2 tsp. salt, 1 large egg, 2 Tbsp. Worcestershire (or sub milk), 8 oz. beef, ground
Roll into balls (and brown): Roll mixture into small, tiny meatballs, about 3/4-inch in size, use your hands or a small melon baller, and place on a baking sheet lined with parchment paper. Set aside. (Optional step: you can brown the meatballs in batches and avoid over crowding the pot for about 2 minutes in a large pot with a little olive oil. Cook about 3/4 of the way, they will finish cooking in the soup. Remove them from the pot and set aside and repeat process with remaining meatballs, adding a touch more olive oil as needed along the way).
Saute the veggies: Add olive oil to a large soup pot along with the onions, celery, carrots, salt & pepper, and sweat over low heat for 15 minutes. Stirring occasionally. Then add in garlic and sage and stir for ~1 minute until fragrant.
2 Tbsp. olive oil, 1/2 medium white onion, chopped, 3 large carrots, peeled and finely chopped, 4 stalks celery, diced, salt and pepper to taste, 2 cloves garlic, minced, 2 Tbsp. sage, fresh, chopped
Add broth: Add in the broth and bring to a boil. (Pro tip: add the rind of the Parmigiano Reggiano cheese here!).
10-12 cups chicken broth (homemade preferred but store bought is OK too)
Add meatballs: Then add in the meatballs. Once they float to the top they will most likely be done. Be sure to check internal temperature with a meat thermometer (Beef and pork should reach 145°F). If adding in uncooked pasta into the soup, add 3/4 cup of it in this step).
Add greens, garnish, and serve: Stir in the greens (I used baby spinach). Taste and adjust seasonings, adding more salt or pepper as desired. To serve, spoon cooked pasta into a bowl, followed by the soup, and finish with Parmigiano Reggiano or Pecorino Romano and a drizzle of olive oil (optional).
2 cups cooked small pasta, such as acini di pepe or ditalini, or cook more pasta as desired, 8 cups greens (baby spinach, endive, kale, or escarole), parmigiano reggiano for garnish and good quality olive oil (optional)