A number of weeds growing around your house are edible. Chickweed (Stellaria media) is found in lawns and random areas in cooler climates. It pops out ahead of most other plants in the spring, though it also grows year-round.

Source: Supersod.com
It can grow low, hiding in the grass, but it is easier to harvest as a taller standalone clump. Here is a clump from my yard, with the roots and tougher lower parts cut off:

People eat it raw, but I prefer to blanch it first to reduce any bitterness and to get rid of any critters or contaminants. To do that, I got two cups of water boiling in a Pyrex measuring cup, then dropped the chickweed in and stirred it around for a minute, followed by a cool water quench in a colander. The chickweed was then in a wilted state, but still green and crunchy and (as I understand) retaining nearly all its nutrients.
For me, chickweed functions like arugula or cilantro or Italian parsley, as an interesting and worthwhile addition to a salad or sandwich. I would not relish a whole plate of it.
Speaking of nutrients, in folk medicine chickweed is credited with amazing powers. Eat The Planet tells us that:
Chickweed is full of vitamins A, B1, B2, and C as well as fiber and protein. Due to its nutritional contents and numerous medicinal properties, this cold-weather herb has been used in folk medicine for hundreds of years. It can treat many different conditions, such as constipation, bowel problems, iron-deficiency anemia, asthma, bronchitis, joint pains, and blood disorders. It can also aid weight loss by making you feel fuller for longer.
You can also apply the herb directly onto the skin to treat itchiness, bruises, boils, ulcers, and psoriasis. To do this, you can either bruise the leaves or steep the stems in hot water before applying them directly onto the affected areas.
Wow, sign me up.
Drugs.com, however rains on this parade with:
There is no indication that any of the plant’s constituents possess therapeutic activity. Its vitamin content is too low to be of therapeutic value.
Verywellhealth stakes out a middle ground, noting that chickweed has demonstrated significant anti-inflammatory and anti-viral activity in lab experiments with animals, but also noting that these results may or may not translate to efficacy in humans:
Juice or extracts made from chickweed have been studied in test tubes or mice models for the following conditions:
Hepatitis B. Chickweed was shown to have anti-hepatitis B virus activity in a test tube study.
Obesity. Chickweed extract given to overweight mice decreased the amount of food they consumed and their absorption of fats.
Diabetes. Chickweed leaf extract demonstrated antidiabetic effects, such as lowering blood sugar and hemoglobin A1c in mouse models.
Heart problems in people with diabetes. Chickweed tea given to diabetic rats did not improve their blood sugar levels but did seem to protect against cardiomyopathy.
Anxiety. Chickweed given to mice showed similar activity as diazepam, a classic anxiety medication in the benzodiazepine family.
Whatever. It’s crunchy, tasty, and free.