Preheat oven to 350 degrees.
Prepare baking sheet.
In a large bowl, combine ground meats. Set aside.
In a medium skillet, saute onion, shallot, carrots, and garlic in olive oil until fragrant and tender. Set aside.
In a medium bowl, whisk together eggs, milk, and next 9 ingredients.
Pour wet ingredients into bowl with ground meat and combine by hand, until just combined. Do not overmix or meatloaf will be hard.
Form meatloaf into a mound and place on prepared rack.
Bake at 350 for 1 hour or until internal temp. reads 160 degrees. Let stand 5 minutes before slicing.