01 - Preheat the oven to 400°F. Toss diced beets, garlic, and shallot with 1 tbsp olive oil and a pinch of salt. Spread on a baking sheet and roast for 25–30 minutes, or until beets are tender.
02 - While the vegetables roast, bring a large pot of salted water to a boil. Cook pasta according to package instructions until al dente. Drain, reserving 1/2 cup of pasta water.
03 - Add roasted beets, garlic, shallot, heavy cream, butter, Parmesan, remaining olive oil, black pepper, thyme, and nutmeg to a blender. Blend until smooth and creamy. If too thick, add a splash of reserved pasta water.
04 - Return pasta to the pot. Pour beet cream sauce over the pasta. Toss gently over low heat until the pasta is evenly coated and heated through. Add pasta water as needed for desired consistency. Adjust salt to taste.
05 - Serve immediately, garnished with fresh basil and extra Parmesan.