Place Salt in a small bowl upon the Altar.  Have all the other items close to the Altar, so that you will have them on hand.  Place the Elemental candles and mark out the circle.  Take the bowl of salt, and walking deosil around the circle, sprinkle a little as you walk, saying:
 

“ With Salt I purify this circle, 
may no harm enter within.”

When you have finished, replace the salt on the Altar.  Take your Athame or Wand (if you do not own one of these ritual tools, you may use your index finger), and walk around the circle, in a deosil direction, imagining white light streaming out from the Athame/Wand/Finger to create a circle of fire.  As you walk around a second time, imagine the fire growing higher and higher, spreading out under the ground as well.  As you walk around for the third and final time, imagine the fire closing up over the top of you, and joining up under the ground to create a sphere.  When you have finished, stand in the centre of the circle with arms up and say:
 

“I cast this magick circle, 
that it be a boundary between this world, 
and that of the Spirit realm. 
As above [point to the sky],
So below [point to the ground], 
the circle is cast!”

Walk over to the Northern candle, light it.  Stand with arms outstretched, feet slightly apart, saying:
 

“Hail Guardian of the Watchtower of the North, 
Element of Fire. 
I call upon thee to guard and protect, 
to lend your power to mine. 
So mote it be!”

Repeat for the other Elements.  Return to the Altar.  Stand before the Goddess candle (a Silver/white candle), and light it.  Stand with arms outstretched, feet slightly apart, saying:
 

“Holy Mother of the Earth, 
Shining lady of the moon, 
I call upon thee to assist and protect, 
to lend your power to mine.
Welcome, loving Goddess, 
into my circle.”

Stand before the God candle (a Gold/yellow/red candle), and light it.  Stand with arms crossed over your chest, feet together, saying:
 

“Holy Father of the Sky, 
Blazing Lord of the Sun, 
I call upon thee to assist and protect,
to lend your power to mine.
Welcome, loving God, 
into my circle.”

Close your eyes and mediate on the past few months, and think of all the good things that have happened in that time.  Lammas is a time for transformation, and any negative feelings you have been holding onto can be discarded now.  Take a pen and paper, and write all the negative things you wish to banish.  If possible, burn this paper, either in a cauldron, or in a large heatproof bowl, if this is not possible, then simply throw the paper into a stream or river to be carried away.  As you discard of the paper name the thing you are banishing and declare it to be banished.  You can meditate on the positive things you wish to have in the coming months.  You may like to make some bread.  If you can find a recipe for making your own, this is best, if not you may buy a bread making mix from the supermarket (look for one not for a bread machine - even if you have one you should make this by hand).  As you are making the bread you may like to ask for blessings and focus love, good luck and prosperity into the bread.  If you are celebrating with others, share this bread making and let each person take some of the dough home to bake.  If not, make the bread into small loaves and share this with friends.

You may now do any works of Magick (Spells etc.) you wish. 

When you have finished, hold the simple feast.  Don’t forget to leave some as an offering to the Goddess and God which you should pour/crumble into the ground, to give back to Mother Earth.  When you are ready to end the circle, stand before the God candle and say:
 

“Farewell O’ loving Goddess, 
I thank you for your assistance and protection, 
Both within this circle, and in my life.
I now bid you farewell, 
may you go in peace and love. 
Blessed be.”

Blow or pinch out her candle.  Repeat for the God candle. Return to the Western candle, say:
 

“Farewell Guardian of the Watchtower of the West, 
I thank you for your assistance within this circle. 
I bid you now farewell, 
may you go in peace and love. 
Blessed be.”

Blow/pinch out the West candle.  Repeat the above for each of the remaining Elements.  When you have said farewell to the Northern Guardian, walk around the circle widdershins, imagining the white fire that created the circle retracting back into your Athame/Wand/finger.  Walk around doing this 3 times, and when you have returned to the northern point again, put down the Athame/Wand and say:
 

“May the circle be open, 
but  unbroken”

 It is done!!
..

Cast The Circle in the usual way 

Invoke Elements 

Invoke the Deity

The High Priest says: 

“We Gather here at Lughnassadh. 
To Celebrate the First Harvest of our ancestors. 
The Wheel is turning and Summer shall become Autumn” 

The High Priestess says: 

“Now is the time of the first harvest, 
when the bounties of nature give themselves
so that we may survive.” 

The High Priests says: 

“Although most of us no longer grow our own crops, and for us food is plentiful all year round, 
our ancestors relied on the harvest to ensure their survival in the coming months of darkness. 
We gather here tonight, to celebrate the bounty of the first harvests.” 

The high Priestess says: 

"We shall now make some bread together, 
so that we may each take with us a reminder of the harvest". 

Make bread

Note:  as bread needs to rise twice, you can do this part of the ritual in several different ways. 
1). You can have everyone take turns to mix the bread ingredients and knead it, and then leave it to rise somewhere warm (like in a covered bowl inside a box/basket with a hot water bottle) for an hour during the ritual, then at the end of the ritual everyone kneads it again, then it is broken into portions, taken home (kept warm as it goes home so it can rise again) and baked. 
2). If holding the ritual at home or where there is an oven, you could have the mixing, kneading and first rise done before the ritual, then have everyone knead the bread dough at the begining of the ritual and have it do it's second rise during the ritual (in the warm covered box), then bake it at the end of the ritual, eating it as part of a Simple feast after the ritual.
3).  Another option is to make "Artisan bread", which requires no kneading or rising, and the mixture can be made during ritual and portions given to each person for them to cook at home when they wish (Artisan bread dough can keep for up to 2 weeks, so it does not need to be cooked straight away)

The High Priestess says: 

"Lammas is also a time for transformation, 
any negative feelings you have been holding onto can be discarded now. 
Take a pen and paper, and write down all the negative things you wish to banish." 

The High Priest should hand out pens and paper.  If possible, burn this paper, either in a cauldron, or in a large heatproof bowl, if this is not possible, then simply throw the paper into a stream, ocean or river (Or a bowl of water which is later emptied into a stream or river) to be carried away.  One by one, everyone discards of the paper saying: 
 

“I banish …<whatever it is>… 
I have no need for this any more, 
I banish it away. 
So mote it be!”

The High Priest asks everyone to close their eyes and mediate on the past few months, and think of all the good things that have happened in to them in this time.  If appropriate, a guided meditation can be performed.

The High Priestess stands before the altar and says: 

“As the wheel turns from Summer into Autumn, 
we give thanks for all the blessings we have received, 
and look forward to those blessings that lay before us. 
We also give thanks for giving us the strength 
to endure the hardships that we must also endure, 
and we for our part must strive to always learn from these hardships.”
 

Simple feast

Farewell Deity 

Farewell Elements

Close Circle in the usual way.