Heat oil in a saucepan over medium-high heat. Add onion and garlic; saute until softened and translucent, 5 to 7 minutes. Add tempeh bacon, wine, and chipotle chile. Cook and stir until combined, about 1 minute. Reduce heat to medium. Add broth, sweet potatoes, water, and lentils. Cook stew until lentils fall apart and potatoes are tender, about 20 minutes. Stir in cinnamon; season with salt and pepper.
Place tortilla strips in a small skillet over high heat; cook until crispy, 3 to 5 minutes.
Ladle stew into bowls; top with toasted tortilla strips.
