In a medium size skillet fry bacon until starting to crisp and most of the fat has rendered. Scoop out bacon with a slotted spatula to a paper towel lined plate, leaving approximately
3 tbsp of bacon fat in the pan. In same pan over medium heat sauté garlic in bacon fat until fragrant, about 1 minute. Add red onion and sauté for 1 minute. Stir in cherry tomatoes and cook, tossing often for 1 minute. Pour in dressing and add bacon, stir to combine Pour over spinach while hot and toss to coat the spinach. Season with sea salt and cracked black pepper. Garnish with shaved cheese, croutons and fresh dill. Serve immediately.