Grease grill and heat to medium high heat.

Drizzle red onions with olive oil and thread onto a skewer (if using a wooden skewer, soak skewer in water for at least 30 minutes beforehand). Drizzle pears, red bell pepper quarters, and jalapeno with olive oil to lightly coat.

Working in batches as needed depending on grill size, grill pineapple and vegetables at medium high heat (uncovered) until tender crisp and lightly charred all over, about 12 minutes for the onions, turning occasionally, about 8-10 minutes for the pineapple, or until caramelized, flipping once, 6 minutes for the red bell peppers, flipping once, 4 minutes for the pears, flipping once, and jalapeno for 3-5 minutes, turning occasionally.

Once cool enough to handle, dab (or rinse) off any excess oil with paper towels and chop pineapple (cutting around core), pears, red bell peppers, and onions. Devein and deseed jalapeno and dice, reserving some of the seeds if desired.

Reserve the jalapeno and toss the pineapple, pears, red bell pepper, red onion, cilantro, lime juice, ginger, cumin and salt and pepper to taste in a large bowl. Add half of the jalapeno and more to taste if desired. If you would like it spicier, add some of the jalapeno seeds to taste as well.

Can be served immediately or even better chilled.