4 lbs quality ground beef
4 cups finely diced Spanish onion
1½ cups diced red pepper
1½ cups diced green pepper
1 tbsp very finely chopped garlic
1 tsp kosher salt
½ tsp ground black pepper
¼ tsp crushed red pepper flakes
1 tbsp sweet paprika
2 cups canned diced tomatoes with their juices
2 tbsp Worcestershire
½ cup tomato paste
1 cup ketchup