In the large dutch oven, cook the bacon over medium heat until crispy, stirring occasionally.
Remove the bacon with a slotted spoon, and drain the bacon on paper towels.
Cook and stir the carrots and the onions in the bacon drippings, until crisp and tender about 4 minutes.
Add the garlic, thyme, tomato paste and pepper. Let this cook for about 1 to 2 minutes longer.
Add the chicken stock and wine. Increase the heat to medium high. Cook about 2 minutes , stirring to loosen the brown bits from the pot.
Stir in the bacon, butter beans, and the lentils. Bring this mixture to a boil. Reduce the heat on this mixture, and let it simmer, covered for about 4 to 5 minutes.
Now, uncover the pot and continue simmering until the vegetables are tender about 20 more minutes.
Serve topped with thyme sprigs.