Assemble the Meatloaf:
Press half of the meatloaf mixture into a greased loaf pan.
Create a well in the center and fill with the spinach mixture.
Cover with the remaining meatloaf mixture, sealing the edges.
Bake the Meatloaf:
Preheat oven to 350°F (175°C).
Bake for 1 hour or until internal temperature reaches 160°F (71°C).
Let rest for a few minutes before slicing.
