4In a large bowl, mix together the uncooked ground beef, onion, dry pasta, diced tomatoes with their juice, bone broth, tomato paste, mustard, 1 cup of the shredded cheese, salt, and pepper.
5In a large bowl, mix together the uncooked ground beef, onion, dry pasta, diced tomatoes with their juice, bone broth, tomato paste, mustard, 1 cup of the shredded cheese, salt, and pepper.
6In a large bowl, mix together the uncooked ground beef, onion, dry pasta, diced tomatoes with their juice, bone broth, tomato paste, mustard, 1 cup of the shredded cheese, salt, and pepper.
7Divide the mixture evenly among four oven-safe 600 ml glass bowls.
8Divide the mixture evenly among four oven-safe 600 ml glass bowls.
9Divide the mixture evenly among four oven-safe 600 ml glass bowls.
10Cover each bowl tightly with aluminum foil.
11Cover each bowl tightly with aluminum foil.
12Cover each bowl tightly with aluminum foil.
13Place the bowls on a baking sheet and bake for 20 minutes.
14Place the bowls on a baking sheet and bake for 20 minutes.
15Place the bowls on a baking sheet and bake for 20 minutes.
16Remove from oven, carefully uncover, and stir each portion.
17Remove from oven, carefully uncover, and stir each portion.
18Remove from oven, carefully uncover, and stir each portion.
19Top each bowl with the remaining cheese.
20Top each bowl with the remaining cheese.
21Top each bowl with the remaining cheese.
22Return to oven, uncovered, and bake for an additional 5-7 minutes, or until cheese is melted and bubbly.
23Return to oven, uncovered, and bake for an additional 5-7 minutes, or until cheese is melted and bubbly.
24Return to oven, uncovered, and bake for an additional 5-7 minutes, or until cheese is melted and bubbly.