1 pound lean ground beef
1 cup diced onion
3 garlic cloves , minced
2 (14.5 ounce) cans diced tomatoes, undrained
1 (8 ounce) can tomato sauce
1/4 cup tomato paste
4 cups (32 ounces) low sodium beef broth
2 teaspoons Italian seasoning
6 uncooked lasagna noodles , broken into 1 1/2 inch pieces (about 6-8 ounces; see Note)