
Heat the chopped plums and water on high until they come to a boil. Reduce heat and let simmer and reduce for about 20-30 minutes. Cool.
Combine plum sauce with vinegar, oil, mustard, salt, and pepper in a mason jar.
Create the salad in a large bowl combining all the baby lettuces with the pears, pecans, and cheese.
Shake up the dressing and pour 1/2 on the salad. Toss well.
Add more dressing if desired.