Cook the bacon until thoroughly crisp, then crumble it into small pieces. Transfer the bacon to an airtight container and set it aside so it stays fresh until serving.
Chop the broccoli, red bell pepper, jalapeño, and green onions. Place the prepared vegetables in a large mixing bowl, then add the shredded cheddar and toss everything together until evenly combined.
In a separate medium bowl, whisk the mayonnaise, apple cider vinegar, and powdered sweetener until the mixture is smooth and fully blended.
Pour the dressing over the broccoli mixture. Stir well so the vegetables and cheese are evenly coated. Cover the bowl and refrigerate until ready to serve, allowing the flavors time to meld.
Just before serving, scatter the crumbled bacon over the salad and stir once more to distribute it evenly. Season with salt and pepper as needed, then serve.