Combine ground chuck or sirloin, Moore's marinade, spinach, garlic, salt, and pepper in a mixing bowl.

Mix well and form into four burger patties.

Combine parsley, lemon juice, garlic, onion, radishes, tomato, cucumber, white vinegar, olive oil, and salt in a bowl.

Mix well and refrigerate until the burgers are ready.

Whisk flour and water together to make a slurry.

Melt butter over medium heat, add the slurry, and whisk to combine.

Add shredded cheddar, blackberries, cayenne, and whole cream.

Reduce heat to medium-low and stir until melted. Cover and keep on low heat until the burgers are done.

Pan fry or grill the burger patties until cooked to your desired doneness.

Place Bibb lettuce on the bottom half of the burger bun.

Add a layer of tabbouleh, followed by the cooked burger patty.

Top with the cheese sauce and the other half of the bun.