Combine the cheese filling mixture in a medium bowl and set aside. Take ½ cup of the marinara sauce and spread it on the bottom of a 9 x 13-inch baking dish.
Preheat oven to 375° and bring a large pot of salted water to a boil.
While the water is heating up, heat olive oil over medium heat and add the diced onions. Let them soften for 10 minutes.
Add the ground beef and sausage and increase heat to medium-high. Cook for 8-10 minutes, or until cooked through. Add garlic during the last minute. Drain excess grease.
Add the chicken broth and use a silicone spatula to clean the bottom and sides of the pot. Add the remaining marinara sauce along with the Worcestershire sauce and hot sauce. Bring to a boil, then reduce to a simmer.
Let the sauce simmer gently while you boil the lasagna noodles to al dente according to package instructions. Drain and rinse with cold water.
Line the noodles up on a parchment or wax paper.
Spread an even layer of the cheese mixture over each lasagna noodle, about 2 ½ tablespoons each.
Spread ¼ cup of sauce over each noodle, and reserve the rest.
Roll up the noodles tightly, and transfer them to the baking dish, seam side down. Top with remaining meat sauce, then sprinkle with remaining mozzarella.
Spray foil with nonstick cooking spray and place it spray-side-down on top of the baking dish.
Bake for 35 minutes. If desired, remove foil and broil at 450° to brown the top more, watching it carefully.
Remove and garnish with fresh parsley prior to serving.