In a large bowl, combine the ground beef, crushed saltine crackers, chopped onion, chopped green bell pepper, eggs, milk, ketchup, salt, black pepper, garlic powder, onion powder, thyme, parsley, and basil. Mix until all ingredients are thoroughly combined.
1½ pounds ground beef, 1 cup finely crushed saltine crackers, 1 small yellow onion, 1/2 cup finely chopped green pepper, 2 large eggs, 1/3 cup whole milk OR half and half, 1/4 cup ketchup, 1 teaspoon kosher salt, ½ teaspoon black pepper, ½ teaspoon garlic powder, ½ teaspoon onion powder, ½ teaspoon dried thyme, ½ teaspoon dried parsley, ½ teaspoon dried basil