Cut the sweet peppers lengthwise; remove and discard the stems, seeds, and membranes. Brush eggplant slices with oil. Grill eggplant slices and sweet pepper quarters on the rack of an uncovered grill directly over medium-hot coals for 4 minutes. Turn and grill 3 to 5 minutes more or until eggplant is tender and sweet peppers are slightly charred. Remove vegetables from grill; set aside.
Spread 1 side of each bread slice with cheese and mustard. Layer 3 eggplant slices and 2 sweet pepper quarters on 4 of the bread slices. Top with remaining bread slices (optional). Serve warm.
In 4-quart saucepan, heat oil over medium heat. Add kielbasa, onions, bell peppers, celery, garlic, bay leaves and thyme; cook 4 to 6 minutes, stirring occasionally, until vegetables are tender.
Stir in tomatoes and salt, then bring to a boil.
Reduce heat to low, cover and simmer for 20 minutes, stirring occasionally.
Stir in beans and cover, simmer for 10 minutes longer.
Cook rice in water as directed on the package. Remove bay leaves from bean mixture. Pour the bean mixture over the rice and serve. Enjoy!