If baking now, preheat oven to 425. Line a rimmed baking sheet with parchment paper; set aside.

Heat oil in a large skillet over medium-high heat. Add bell pepper and onion, and cook for 5 minutes.

Stir in garlic and shallots, and cook for 2 minutes. Set aside to cool.

In a large bowl, whisk together eggs, parsley, and thyme.

Add sirloin, turkey, pork, panko, 1/2 c ketchup, 2 tablespoons vinegar, and cooled vegetables; mix just until combined.

Pack meat mixture into a 9 x 5 inch loaf pan. Invert loaf pan onto prepared pan.

In a medium bowl, whisk together remaining 1 cup ketchup, remaining 2 tablespoons viegar, tomato sauce, honey, mustard, hot sauce, sale and pepper.

Reserve one-quarter sauce for serving. Brush remaining sauce evently over meat loaf.

Bke for 1 hour and 15 minutes.

Remove from oven, and let stand for 10 minutes before slicing.

If freezing, place meat mixture in sealed ziptop bag; place sauce in separate bag. Freeze both bags flat inside a larger bag.

To serve, thaw and bake as directed above.