1. Prepare the Crust:

1. Preheat oven to 400°F (200°C). Line baking sheets with parchment paper.
2. Place bell peppers on a baking sheet and roast for 30-40 minutes, turning occasionally, until skins are charred. Transfer to a bowl, cover with plastic wrap, and let steam for 10 minutes. Peel, seed, and cut into strips.
3. Toss eggplant and zucchini slices with olive oil, salt, and pepper. Arrange in a single layer on baking sheets. Roast for 15-20 minutes, flipping halfway, until tender and lightly browned. Let cool.
4. In a small bowl, mix goat cheese with half of the cranberries until combined.
5. Line a 9×5-inch loaf pan with plastic wrap, leaving overhang. Layer one-third of the roasted eggplant slices on the bottom, slightly overlapping.
6. Spread half of the goat cheese mixture over the eggplant. Top with a layer of roasted yellow peppers, then a layer of zucchini slices.
7. Repeat layers: remaining eggplant, remaining goat cheese mixture, then red peppers. Press down gently. Fold plastic wrap over the top and refrigerate for at least 4 hours or overnight.
8. For the pistachio crunch: in a small skillet, toast chopped pistachios over medium heat until fragrant. Stir in balsamic vinegar and honey, cook for 1 minute until syrupy. Spread on a plate to cool.
9. Unmold the terrine by lifting the plastic wrap. Slice into thick pieces. Top each slice with pistachio crunch, remaining cranberries, and fresh basil.
10. Serve chilled or at room temperature.