Creating Creamy Garlic Beans is straightforward when you follow these steps:

1. Prepare the Green Beans: Trim the ends of the green beans and set aside.
2. Sauté Garlic: In a large skillet, heat olive oil over medium heat. Add minced garlic and sauté for about 1-2 minutes until fragrant.
3. Add Green Beans: Toss in the trimmed green beans and sauté for another 5 minutes until they begin to soften.
4. Incorporate White Beans: Add the drained white beans to the skillet, stirring to combine.
5. Pour in Heavy Cream: Slowly add the heavy cream to the mixture. Stir well to combine all the ingredients.
6. Season: Add salt, black pepper, and thyme, stirring to ensure even seasoning.
7. Simmer: Allow the mixture to simmer for about 5-7 minutes until the sauce thickens slightly.
8. Add Cheese (Optional): If using, stir in the grated Parmesan cheese until melted and creamy.
9. Serve: Remove from heat and garnish with chopped parsley before serving.

Following these steps will guide you to create a delicious and creamy side dish that will impress your guests.