Makes about 12 cups

1 teaspoon olive oil
1 cup onion, finely chopped
1/2 cup carrot, finely chopped
1 teaspoon dried oregano
2 cloves garlic, minced
1 cup ketchup, divided
1 & 1/2 lbs. ground beef
20-24 saltine crackers, finely crushed
2 Tablespoons mustard
1 teaspoon crushed red pepper flakes
1/4 teaspoon onion salt
1 teaspoon Worcestershire sauce (speaking of horrible names…)
1/4 teaspoon black pepper
2 large eggs
cooking spray