Preheat oven to 375°F (190°C).

In a large bowl, combine cracker crumbs, onion powder, seasoned salt, salt, and pepper.

Add tomato sauce and eggs to the dry ingredients and mix until well combined.

Add ground beef to the mixture and mix thoroughly.

Transfer the meat mixture to a 9 x 5-inch loaf pan.

Bake in the preheated oven for 2 hours, or until the internal temperature reaches 160°F (71°C).

Let the meatloaf rest for 10 minutes before slicing and serving.