Ms. Mohamed began her catering business, specializing in Sudanese cuisine, in February 2015. She and her husband also matched their savings through an International Rescue Committee program, and reinvested it in the business. Ms. Mohamed dreamed of eventually expanding the business and owning a food truck.

Natalie El-Deiry, the deputy director of the agency in Salt Lake City, said, “One of the remarkable things about Kaltum and her family is that they utilized every single program we have at the I.R.C. to move their family forward, to become independent and self-sufficient.”

Two years after starting the business, the couple were able to meet their goal. Their bright green truck, like the business, is named Mother of All. Mr. Suliman, 57, drives the truck and helps with the catering. They want to continue to save and buy a bigger truck.

“I want all Americans to taste my food,” Ms. Mohamed said.

The family is approaching five years of living in the United States, which means they will soon be able to apply for citizenship. “We will be lucky to have them as citizens in this great country,” Ms. El-Deiry said.

Looking around her four-bedroom apartment during the interview, Ms. Mohamed said, “We are lucky to be here.”