Preheat and cube: Fire up your oven to 400°F. Chop 2 medium sweet potatoes into ½-inch pieces so they roast evenly throughout.
Season potatoes: Toss your potato cubes with 2 tablespoons olive oil, ½ teaspoon salt, and ¼ teaspoon pepper until everything's coated good.
Roast vegetables: Spread them out on your sheet pan in one single layer. Roast for 25-30 minutes, and stir them halfway through so they caramelize beautifully.
Make dressing base: Grab your bowl and whisk together ½ cup mayonnaise, 2 tablespoons lemon juice, 1 tablespoon Dijon mustard, and 2 minced garlic cloves until creamy.
Complete dressing: Mix in 1 teaspoon Worcestershire sauce and ⅓ cup Parmesan cheese. Taste it and add more salt or lemon if you want.
Prepare lettuce: Tear up 1 head romaine lettuce into bite-sized pieces and dump them into your big serving bowl right now.
Assemble salad: Top your lettuce with those roasted sweet potatoes, ½ cup croutons, and a sprinkle of extra Parmesan cheese.
Dress and toss: Pour your Caesar dressing over everything and give it a gentle toss so all the flavors dance together.
Serve immediately: Divide it among plates and DIG IN while the potatoes are still warm and everything tastes absolutely amazing.